Nortel DMS-100 Intertoll Trunk Group Type

Intertoll Trunk Group Type

In a DMS toll or end office, two-way, incoming, or outgoing trunk group type intertoll (IT) interfaces with another toll or end office to carry toll connecting traffic including toll access, toll completing, and toll tandem.

In offices without software package NTX052AB Remote Office Test Line (ROTL) that do not have trunk group type T105, the 105 test line can be datafilled as an IT trunk group type.

If overlap outpulsing is required on incoming or two-way Dial Pulse (DP) trunk groups, field OVLP in table TRKSGRP (Trunk Subgroups) must be set to "Y" (yes).

Overlap outpulsing can only apply between incoming and two-way intertoll trunk groups and outgoing and two-way intertoll, local, and Integrated Business Network (IBN) trunk groups.

The standard digit manipulation defined for selector "S" in the route reference subtables is applicable to outgoing and two-way intertoll trunk groups, except when a call is routed from table STDPRTCT (List of Standard Pretranslation Tables).

If no outpulsing is required, fields OPULSTYP and OSTARTSG in table TRKSGRP have the values of "DP" (Dial Pulse) and "IM" (Immediate Dial) respectively.  The route reference index for this trunk group is required to use the non-standard format (N) and delete all digits.

If the trunk group has Common Channel Interoffice Signaling (CCIS) supplementary information for the trunk, members are assigned in table C6TRKMEM (CCIS6 Trunk Member Table).

Option BCNAME is only valid for incoming and two-way trunk group types.

Option CELL is not compatible with option E911.

Equal Access for DMS-100 Wireless

When datafilling Equal Access (EA) on the DMS-100 Wireless switch, the wireless portion of an ISUP Integrated Service Link (ISL) trunk must be datafilled as a DID trunk group type with refinement RTEVIAAT set to "Y".

The wireline portion of the ISUP ISL trunk must be datafilled as an IT trunk type.  Option CELL must be set to "2A" to support North American EA ISL terminations.  A distinct billable number must be designated for option BILLNO for the downstream processor to distinguish the AMA records generated by the wireless DID ISL and non-ISL trunks.

E911 ISUP Trunking

Option E911 provides the ability to route Enhanced 911 Emergency Service (E911) calls directly over Integrated Services Digital Network User Part (ISUP) trunks.  Incoming trunks with this option can process E911 calls by selecting the appropriate route to the Public Safety Answering Point (PSAP) using the normal E911 Selective Routing Database (SRDB) or an Off-Board Selective Routing Database (OFBSR).

End Office and Outgoing Trunk Datafill of E911 Option

Offices that are not E911 tandems should not datafill option E911 on any IT trunks.  All incoming calls on an IT trunk with option E911 perform a SRDB lookup to determine the caller's Emergency Service Number (ESN).  Since there are no valid ESNs in an office that is not an E911 tandem, these calls are routed to treatment.  If a 'dummy' PSAP and ESN is datafilled, this allows the calls to complete, but does add an unnecessary step to all incoming calls (the SRDB lookup).

Datafilling option E911 has no effect on outgoing calls.

Datafill of E911 Option on Non-Dedicated Trunks

The following should be considered when data is entered for the E911 option on non-dedicated trunks.

Datafill Sequence and Implications

Table TRIGGRP must be datafilled before table TRKGRP, type IT.

Calls using the default Emergency Service Number (ESN) do not complete if the ESN is not datafilled in table E911ESN (Enhanced 911 Emergency Service Number).

Standard table control error messages are produced as well as the following warning messages:

DANGER - The following warning message is generated if an ESN is datafilled for an E911 trunk group and is not datafilled in table E911ESN, and if office parameter E911_CHECK_DEFAULT_ESN is set to "N":  ESN NOT PRESENT IN TABLE E911ESN. THIS ESN MUST BE DATAFILLED IN TABLE E911ESN FOR 911 CALLS TO COMPLETE.




With the following message, no tuple is added to table TRKGRP:

DANGER - The following error message is generated if an attempt is made to datafill an ESN for an E911 trunk group and it is not datafilled in table E911ESN, and if office parameter E911_CHECK_DEFAULT_ESN is set to "Y":  ESN MUST BE IN TABLE E911ESN.

For additional datafill dependencies, refer to section "Datafill Sequence" in the general section of table TRKGRP.

Datafill (Incoming Intertoll)

The following table lists datafill for table TRKGRP, type IT.

----------------------------------------------------------------------------------------------
Field Descriptions - Incoming Intertoll

Field    Subfield        Entry               Explanation and Action
----------------------------------------------------------------------------------------------
GRPKEY                   See subfield        Group Key
                                             This field consists of subfield CLLI.
       
         CLLI            Alphanumeric        Common Language Location Identifier
                         (1 to 16            Enter the Common Language Location Identifier
		         characters)         (CLLI) name assigned to the trunk group in 
			                     table CLLI.
----------------------------------------------------------------------------------------------
GRPINFO                  See subfields       Variable Group Information
                                             This field consists of subfields GRPTYP, 
				             TRAFSNO, PADGRP, NCCLS, DIRDATA, TRAFCLS, 
					     SELSEQ, CONNGNPA, PRTNM, SCRNCL, SNPA, 
					     TERMTC, TOLLCOMP, CCWKVLD, and OPTIONS. 
					     Refer to section "General Field Information"
					     in table TRKGRP for information on an alternate
					     structure for this field that results from the 
					     datafill of table CUSTFLDS.

         GRPTYP          IT                  Group Type
	                                     Enter "IT" for the intertoll trunk group type.

         TRAFSNO         Numeric             Traffic Separation Number
			 (0 to 127)          Enter the incoming traffic separation number 
					     assigned to the trunk group.  If it is not 
					     required, enter "0" (zero).

                                             If switching unit has feature package NTX085AA 
					     (Traffic Separation Peg Count), enter a number 
					     between 1 and the value of office parameter
					     TFAN_IN_MAX_NUMBER in table OFCENG.
                                                
					     For switching units without feature package 
					     NTX085AA, enter 0 to 15.

                                             Incoming and outgoing traffic separation 
					     numbers 1 to 9 should be reserved for 
					     generic traffic separation numbers.
					     Refer to the description of table TFANINT 
					     (Traffic Separation Intersection) for 
					     additional information.


         PADGRP          Alphanumeric        Pad Group
                         (1 to 5             Enter the name of the pad group assigned to 
			 characters)         the trunk group in table PADDATA.

			                     Refer to the description of table PADDATA
					     (Pad Data) for additional information.

         NCCLS           NCRT                Operational Measurements No-Circuit Class
                                             This field is not required for incoming trunk 
					     groups; enter "NCRT" (no circuit).

         DIRDATA         See subfield        Direction Data
	                                     This field consists of subfield DIR.

         DIR             IC                  Direction
	                                     Enter "IC" to specify that the direction of 
					     traffic flow is incoming.

					     If office parameter TRK_OOS_CHK_ON in table 
					     OFCVAR is set to "Y" (yes), all trunks in 
					     the group must be busy before changing the 
					     value of this field by Data Modification 
					     Order (DMO).

         TRAFCLS         Alphabetic          Traffic Usage Class
	                                     Enter the traffic usage class assigned to 
					     the trunk group.

					     Refer to the description of table TRKGRP 
					     for information.

         SELSEQ          MIDL                Select Sequence
                                             Enter "MIDL" to specify the most idle trunk 
					     group selection method.

					     Entries other than MIDL are not valid 
					     (sequential selection does not apply to 
					     incoming trunk groups).

         CONNGNPA        000                 Connecting Numbering Plan Area
	                                     This field is not required for incoming trunk
					     groups.   Enter "000".

         PRTNM           Alphanumeric        Standard Pretranslator Name
	                 (1 to 4             If standard pretranslation is required, enter the
			 characters) or      name of the standard pretranslator to which digit
			 NPRT                translation routes after the receipt of one digit.

			                     If pretranslation is not required, enter "NPRT".

					     If office parameter TRK_OOS_CHK_ON in table OFCVAR 
					     is set to "Y", all trunks in the group must be busy 
					     before changing the value of this field by DMO.

         SCRNCL          Alphanumeric        Class-of-Service Screening Name
	                 (1 to 32            If screening by class-of-service is required, enter
			 characters) or      the name of the class-of-service screening to which
			 NSCR                digit translation routes.

			                     If class-of-service screening is not required,
					     enter "NSCR".



         SNPA            Numeric             Serving Numbering Plan Area
	                 (3-digits)          Enter the Serving Numbering Plan Area (SNPA) code
			                     to which the trunk group belongs.

                                             If office parameter TRK_OOS_CHK_ON in table 
					     OFCVAR is set to "Y", all trunks in the group 
					     must be busy before changing the value of this 
					     field by DMO.

         TERMTC          000                 Terminating Toll Center
	                                     Terminating toll center is not applicable to 
					     incoming trunk groups.  Enter "000".

         TOLLCOMP        Y or N              Toll Completing
                                             If toll completing is required, enter "Y" (yes); 
					     otherwise, enter "N" (no).

         CCWKVLD         Y or N              Carrier Connect Wink Valid
                                             Enter "Y" if carrier connect winks in equal
					     access international calls are regenerated. 
					     Otherwise, enter "N".

				             Since most non-DMS Equal Access End Offices 
					     (EAEO) and Access Tandems (AT) cannot handle 
					     this wink, the value "N" should be datafilled
					     in these cases.

         OPTIONS         See subfield        Options
	                                     Datafill up to three multiples of subfield 
					     OPTION and the corresponding refinements for
					     the desired trunk option.  Enter "$"
					     (dollar sign) to indicate the end of the 
					     options vector.

         OPTION          AIN,                Option
	                 BCNAME,             The following options can be datafilled:
                         BILLNO,             
			 BLOCKNB,            * AIN - Advanced Intelligent Network
			 CELL,                 This option allows specifying an AIN 
		         DEDICATED,    	       group identification.  Datafill refinement 
		         E911,		       AINGRP.
                         CHGNUM,
		         LNP		     * BCNAME - Bearer Capability Name
					       Datafill refinement BCNAME.

					     * BILLNO - This option allows specifying 
					       the billing number.  Datafill refinement 
					       BILLNO.

					     * BLOCKNB

					     * CELL - This option allows specifying the 
					       configuration of the intertoll trunk type. 
					       Datafill refinement CELL_SS7_TYPE. 
					       This option is valid only for North America.
                                                
                                               Note: Option CELL is not compatible with
						     option  E911.

         DEDICATD        Y or N              * DEDICATED - This field determines whether or 
	                                       not the IT trunk is dedicated to E911 traffic 
					       only.  Default is "Y" (yes).


					     * E911 - This option consists of refinements 
					       ESCO, ESN, E911SIG, OFBSR, and TDMPRFX. 
					       To specify the default ESCO for this trunk, 
					       type "ESCO".  To enter the default ESN for
					       this trunk, type "ESN".  To enter the type
					       of signalling to be used by this trunk, type 
					       "E911SIG".  This option is valid only for 
					       North America.  To indicate that OFBSR is 
					       used, type "Y".  To enter the default 
					       TDMPRFX, type "0".

					     * CHGNUM - Charge Number Delivery 
					       This option, sends a charge number and 
					       Originating Line Information (OLI) 
					       parameter with the Initial Address Message 
					       (IAM).  No refinements are required.

					     * LNP - Local Number Portability
					       This option allows datafilling a default 
					       Location Routing Number (LRN) against the 
					       trunk group.  Datafill refinement LRN.

                                               Note: If no options apply, leave this field
					             blank.

         AINGRP                              Advanced Intelligent Network Identifier
	                                     If field OPTION = AIN, datafill an AIN group 
					     identifier.

         BCNAME          Alphanumeric        Bearer Capability Name
                         (1 to 16            If field OPTION = BCNAME, enter the bearer
			 characters)         capability to be used by this trunk group. 
			                     Refer to table BCDEF (Bearer Capability 
					     Definition) for the current list of
					     available bearer capabilities.

					     If field OPTION and refinement BCNAME are 
					     left blank, the default bearer capability 
					     of the central office is used.

         BILLNO          Up to a             Billing Number
	                 11-digit            If field OPTION = BILLNO, enter the billing 
			 billing number      number that is used to populate the originating 
			                     number field in the Cellular Mobile Carrier (CMC)
					     AMA record and the associated equal access AMA 
					     record.  This option is valid only for North 
					     America.

         CELL_SS7_TYPE   2A, 2B,             Cell
                         or NILCELL          If field OPTION = CELL, enter the configuration 
			                     of the intertoll trunk type.  Datafilling this 
					     option as 2A indicates that the intertoll trunk 
					     is configured as a CELL type 2A SS7 trunk. 
					     Datafilling this option as 2B indicates that the
					     intertoll trunk is configured as a CELL type 2B 
					     SS7 trunk.  This option is valid only for North 
					     America.

         ESCO            0000 to 9999        Emergency Service Central Office
	                                     If the entry in subfield OPTION is E911, enter 
					     the default ESCO number representing the end 
					     office at which the E911 trunk originated. 
					     This option is valid only for North America.

         ESN             0 to 15,999         Emergency Service Number
	                                     If the entry in subfield OPTION is E911, enter 
				             the default ESN associated with the emergency 
					     service zone that is used to obtain the DN of 
					     the primary PSAP to which this call is to be 
					     default routed.  This option is valid only for 
					     North America.

         E911SIG         E911_STD,           Enhanced 911 Signaling
	                 E911_CHG,           This entry determines whether the DMS switch
			 WRLS_STD,           uses the calling party number or the charge number
			 WRLS_CLD            to obtain the callback or routing number or both.

			                     The first attempt to enter E911_STD uses the
					     calling party number.  The second attempt uses the
					     charge number.

					     The first attempt to enter E911_CHG uses the
					     charge number.  The second attempt uses the
					     calling party number.

					     The first attempt to enter WRLS_STD uses the
					     calling party number.  There is no second attempt.

                                             Note: The WRLS_STD entry applies to incoming
					     trunks that handle only wireless emergency calls.

					     The first attempt to enter WRLS_CLD uses the
					     calling party number.  There is no second attempt.

                                             Note 1: The WRLS_CLD entry applies to incoming
					     trunks that handle only wireless emergency calls 
					     directly from a mobile switching center.  The 
					     mobile switching center sends the Pseudo Automatic 
					     Number Identifier (PANI) and callback number in a 
					     non-standard format.

                                             Note 2: The E911SIG option is valid only
					     for North America.

         OFBSR           Y or N              Off-Board Selective Routing Database
	                                     This subfield indicates that the facility uses 
					     the OFBSR or dual OFBSR for selective routing. 
					     The default is "N".

         TDMPRFX         0 to 15             Tandem Prefix Value
	                                     If datafilled with a non-zero value, this 
					     suboption indicates the originating E911 
					     tandem in a dual super tandem-tandem network. 
					     A new Generic Digits Parameter (GDP) is built 
					     in the IAM to transport the TDMPRFX to table 
					     E911TDRT.

					     The delivery of the TDMPRFX value in the new 
					     GDP behaves as follows:

                                             * If a non-zero TDMPRFX is datafilled against 
					       an ISUP IT trunk with the E911 option, then 
					       a GDP is built containing the TDMPRFX and 
					       sent on outgoing 911 calls.

                                             * If the TDMPRFX datafill against an ISUP IT 
					       trunk has the default value of "0", and if 
					       no TDMPRFX is received via a GDP, then 
					       outgoing 911 calls do not build the GDP 
					       containing the TDMPRFX.

					     * If a GDP containing the TDMPRFX is received at 
					       an E911 tandem, the value is stored.  It takes 
					       precedence over any datafilled TDMPRFX values 
					       if the TDMPRFX datafilled in table TRKGRP is 
					       non-zero.  If datafilled value is "0", the 
					       TDMPRFX from GDP is dropped and not used for 
					       further processing.

					     * If the TDMPRFX datafill against an ISUP IT 
					       trunk has a default value of "0" and no GDP 
					       is received, the TDMPRFX is ignored.

					     * On an ONP, if a non-zero TDMPRFX is not 
					       datafilled, a default value of "0" is 
					       transferred.

                                             The TDMPRFX field should be datafilled in the 
					     Super E911 tandems for incoming ISUP IT trunks 
					     with the E911 option.  The TDMPRFX field in 
					     other E911 tandems should not be datafilled, 
					     rather the value should be left at the default 
					     of zero.

         LRN             10-digit            Location Routing Number
	                 directory           If field OPTION = LNP, datafill the default 10-
			 number              digit LRN.  This field indicates the originating
			                     service provider, used for billing purposes, if
					     one is not signalled on the incoming trunk.
----------------------------------------------------------------------------------------------
-End-

Datafill Example

An example of datafill for table TRKGRP and incoming trunk group type IT is shown below.  This example was datafilled in accordance with the following datafill requirements:

The following example MAP display shows sample datafill for table TRKGRP, type IT:


GRPKEY       GRPINFO
____________________________________________________________________________________________
OTWAO11MG00  IT 20 TLD NCRT IC IT MIDL 000 NPRT NSCR 613 613 000 N N BCNAME 56KDATA CHGNUM $

An example of datafill for table TRKGRP with an incoming trunk group type of IT is shown below.  This example is valid only for North America, and is datafilled in accordance with the following datafill requirements:


GRPKEY    GRPINFO
_______________________________________________________________________________________________
SUP2WITEA IT 0 ELO NCRT IC NIL MIDL 519 PEA NSCR 919 000 N N (BILLNO 9198480833) (CELL TWO_A) $


An example of datafill for table TRKGRP with an incoming trunk group type of IT is shown in the following figure.  This example is valid only for North America, and is datafilled in accordance with the following datafill requirements:


TABLE: TRKGRP
>POS E911ICS7

GRPKEY    GRPINFO
______________________________________________________________________________________________
E911ICS7  IT 0 ELO NCRT IC NIL MIDL 613 613 AT1 NSCR 613 000 N N (E911 0747 113 E911_STD Y N 0
          0) $   

An example of datafill for table TRKGRP and incoming trunk group type IT is shown in the following figure.  This example is valid only for North America, and is datafilled in accordance with the following datafill requirements:

>TABLE TRKGRP
>POS E911ICS7
>ADD
GRPTYP: IT 
> 
TRAFSNO: 0
.........................
.........................
OPTION: E911
>
ESCO: 0747
>
ESN: 113
>
E911SIG: E911_STD
>
ORIGHOLD: N
>
ECPHTIME: 0
>
OFBSR:
>Y 
TDMPRFX:
>15 
OPTION:
>$ 
WARNING: THE E911 OPTION SHOULD BE ASSIGNED ONLY TO TRUNKS
         WHICH ARE DEDICATED TO EMERGENCY TRAFFIC.
TUPLE TO BE CHANGED:
E911ICS7 IT 0 ELO NCRT IC NIL MIDL 613 613 AT1 NSCR 613 000 N N
         (E911 0747 113 E911_STD N N 0 15) $
ENTER Y TO CONFIRM, N TO REJECT OR E TO EDIT.






Datafill (Outgoing Intertoll)

The following table lists datafill for table TRKGRP, type IT.

                                        
----------------------------------------------------------------------------------------------
Field Descriptions - Outgoing Intertoll
         
Field    Subfield        Entry               Explanation and Action
----------------------------------------------------------------------------------------------
GRPKEY                   See subfield        Group Key
                                             This field consists of subfield CLLI.
			                                                   
         CLLI            Alphanumeric        Common Language Location Identifier
                         (1 to 16            Enter the Common Language Location Identifier
                         characters)         (CLLI) name assigned to the trunk group in
                                             table CLLI.
----------------------------------------------------------------------------------------------
GRPINFO                  See subfields       Variable Group Information
                                             This field consists of subfields GRPTYP,
                                             TRAFSNO, PADGRP, NCCLS, DIRDATA, TRAFCLS,
                                             SELSEQ, CONNGNPA, PRTNM, SCRNCL, SNPA,
                                             TERMTC, TOLLCOMP, CCWKVLD, and OPTIONS.
					     Refer to section "General Field Information"
                                             in table TRKGRP for information on an alternate
                                             structure for this field that results from the
                                             datafill of table CUSTFLDS.

         GRPTYP          IT                  Group Type
		                             Enter "IT" for the intertoll trunk group type.

         TRAFSNO         Numeric             Traffic Separation Number
			 (0 to 127)          Enter the outgoing traffic separation number
					     assigned to the trunk group.  If it is not
					     required, enter "0" (zero).

					     If switching unit has feature package NTX085AA
					     (Traffic Separation Peg Count), enter a number
					     between 1 and the value of office parameter
					     TFAN_IN_MAX_NUMBER in table OFCENG.

                                             For switching units without feature package
                                             NTX085AA, enter 0 to 15.

                                             Incoming and outgoing traffic separation
                                             numbers 1 to 9 should be reserved for
                                             generic traffic separation numbers.

                                             Refer to the description of table TFANINT for
                                             additional information.

         PADGRP          Alphanumeric        Pad Group
			 (1 to 5             Enter the name of the pad group assigned to
			 characters)         the trunk group in table PADDATA.

				             Refer to the description of table PADDATA for
				             additional information.

         NCCLS           NCBN, NCID,         Operational Measurements No-Circuit Class
	                 NCIM, NCIT,         Enter the Operational Measurements (OM)
			 NCLT, NCOF,         no-circuit class to indicate which OM register is
			 NCON,               incremented if treatment Generalized No-Circuit
			 NCRT, NCTC,         (GNCT) occurs.
			 or NOSC             

         DIRDATA         See subfield        Direction Data
		                             This field consists of subfield DIR.

         DIR             OG                  Direction
				             Enter "OG" to specify that the direction of
                                             traffic flow is outgoing.

                                             If office parameter TRK_OOS_CHK_ON in table
                                             OFCVAR is set to "Y" (yes), all trunks in
                                             the group must be busy before changing the
                                             value of this field by Data Modification
                                             Order (DMO).

         TRAFCLS         Alphabetic          Traffic Usage Class
	                                     Enter the traffic usage class assigned to the 
					     trunk group.  Refer to the description of table 
					     TRKGRP for information.

         SELSEQ          ASEQ, CWCTH,        Select Sequence
	                 CCWCTH, DSEQ,       If the trunk group is outgoing (field DIR has
                         LIDL, MIDL,         value OG) and feature package NTX244AB (Enhanced 
			 or WIDEBAND         Sequential Trunk Hunting) is present, then 
					     sequential selection applies; enter 
                                             
					     * CWCTH for clockwise or CCWCTH for 
					       counterclockwise circular trunk hunting 
					       from the most recently released trunk in 
					       the trunk group, based on the order of trunk 
					       members in table TRKMEM.

                                             * ASEQ for ascending or DSEQ descending 
					       sequential selection, based on the order 
					       of trunk members in table TRKMEM.

					     * WIDEBAND and datafill refinements WBSELSEQ, 
					       WBGRPING, and WBSEARCH to specify DS-0's 
					       selection sequence, timelist arrangement types,
					       and time slot search method.

                                             If the trunk group is outgoing and sequential 
					     selection does not apply, enter "MIDL" for most 
					     idle trunk group selection.

                                             Note: Refer to the description of table TRKGRP 
					     for information on field SELSEQ.

                                             Note: The selection sequence for an existing trunk 
					     group can be changed from ASEQ to DSEQ, or 
					     from DSEQ to ASEQ, if all the members are 
					     made Installation Busy (INB) or Unequipped 
					     (UNEQ).  The selection method for an existing 
					     trunk group cannot be changed.  To change the
					     selection method for an existing trunk group 
					     from ASEQ or DSEQ to CWCTH or CCWCTH, or to 
					     MIDL or LIDL, define a new trunk group, as 
					     follows: create a new trunk group with the 
					     required trunk selection method, delete the 
					     individual trunks from the old trunk group, 
					     and add the trunks to the new trunk group.

         WBSELSEQ        ASEQ or DSEQ        Wideband Selection Sequence
                                             Datafill this field if the entry in field SELSEQ 
					     is WIDEBAND.  Enter "ASEQ" to specify that the 
					     wideband trunks are selected in ascending order 
					     from the first idle trunk on the search list, or 
					     enter "DSEQ" to specify that they are selected in 
					     descending order from the last idle trunk on the 
					     search list.  The order of trunks in the search 
					     list is determined by the order in which the trunk 
					     groups are datafilled in table TRKMEM. 

         WBGRPING        FIXED or            Wideband Boundary Preference
	                 FLOATING            Datafill this field if the entry in field SELSEQ 
			                     is WIDEBAND.  Enter the wideband boundary 
					     preference.  The value FIXED specifies that only 
					     the idle trunks within a specific time slot frame 
					     are selected.  This value is only valid for Local 
					     Exchange Carriers (LEC).  The value FLOATING 
					     specifies that any number of consecutive idle 
					     trunks in a trunk group are selected.

         WBSEARCH        BESTFIT or          Wideband Search
	                 FIRSTFIT            Datafill this field if the entry in field SELSEQ 
			                     is WIDEBAND.  Enter the wideband search algorithm. 
					     The value BESTFIT finds the smallest segment of 
					     idle channels (DS-0s) among trunks (DS-1s) within 
					     a trunk group to accommodate a wideband call, a
					     ccording to the boundary preference (FIXED or 
					     FLOATING) specified.  FIRSTFIT finds the first 
					     segment of idle DS-0s that can accommodate a 
					     wideband call, according to the boundary 
					     preference specified.

         CONNGNPA        Numeric             Connecting Numbering Plan Area
	                 (3-digits)          Enter the Numbering Plan Area (NPA) code of 
			                     the switching unit where the outpulsed digits 
					     are translated.

         PRTNM           NPRT                Standard Pretranslator Name
	                                     If standard pretranslation is not required on 
					     outgoing trunk groups, enter "NPRT". If office 
					     parameter TRK_OOS_CHK_ON in table OFCVAR is set 
					     to "Y", all trunks in the group must be busy 
					     before changing the value of this field by DMO.

         SCRNCL          NSCR                Class-of-Service Screening Table Name
	                                     If class-of-service screening is not required on 
					     outgoing trunk groups, enter "NSCR".

         SNPA            Numeric             Serving Numbering Plan Area
	                 (3-digits)          Enter the serving NPA code to which the trunk 
			                     group belongs.  If office parameter 
					     TRK_OOS_CHK_ON in table OFCVAR is set to "Y", all 
					     trunks in the group must be busy before changing 
					     the value of this field by DMO.

         TERMTC          Numeric             Terminating Toll Center
	                 (3-digits)          If the switching unit where the outpulsed digits 
			                     are translated is assigned a terminating toll 
					     center code, enter the terminating toll center 
					     code.  If there is no terminating toll center 
					     code, enter "000".

         TOLLCOMP        Y or N              Toll Completing
	                                     Enter "Y" if the trunk group is toll completing; 
					     otherwise, enter "N".

         CCWKVLD         Y or N              Carrier Connect Wink Valid
	                                     Enter "Y" if carrier connect winks in equal access 
					     international calls are regenerated.  Otherwise, 
					     enter "N".  Since most non-DMS Equal Access End 
					     Offices (EAEO) and Access Tandems (AT) cannot 
					     handle this wink, the value "N" should be 
					     datafilled in these cases.

         OPTIONS         See subfield        Options 
	                                     Datafill up to three multiples of subfield 
					     OPTION and the corresponding refinements for 
					     the desired trunk option.  Enter a "$" (dollar 
					     sign) to indicate the end of the options vector.

         OPTION          BCNAME or           Option
                         CHGNUM              To specify the bearer capability name option, 
			                     enter "BCNAME" and datafill refinement BCNAME. 
					     To specify the charge number delivery option, 
					     which sends a Charge Number (CN) and Originating 
					     Line Information (OLI) parameter with the Initial 
					     Address Message (IAM), enter option "CHGNUM". 
					     Subfield CHGNO_TRAFTYPE has the values PBX or 
					     ALL.  The default is "PBX".

                                             If no options apply, leave this field blank.

                                             Note: The Operator Services Signaling 7 (OSS7) 
					     option Operator Services Network Capability 
					     (OSNC) assigned through table TRKOPTS 
					     requires the CHGNUM ALL option.

         BCNAME          Alphanumeric        Bearer Capability Name
	                 (1 to 16            If the entry in field OPTION is BCNAME, enter 
			 characters)         the bearer capability to be used by this trunk 
			                     group.  Refer to table BCDEF for the current
					     list of available bearer capabilities.

                                             If field OPTION and refinement BCNAME are left 
					     blank, the default bearer capability of the 
					     central office is used.

         CHGNO_TRAFTYPE  PBX or ALL          Charge Number Traffic Type
	                                     If the entry in field OPTION is CHGNUM, select 
					     refinement PBX to provide the CN and OLI 
					     parameters for calls originating on Private 
					     Branch Exchange (PBX) trunks.  Select "ALL" 
					     to provide the CN and OLI parameters for 
					     outgoing calls on the following originating 
					     agents: POTS, RES, IBN, or Basic Rate Interface 
					     (BRI) lines; Primary Rate Interface (PRI) and 
					     ISUP trunks; IBNT2, IBNTI, and PBX trunks; 
					     attendant consoles, or a supported agent routed 
					     through a Virtual Facility Group (VFG).
                                             
					     Select "ALL" to provide OSS7 option OSNC assigned 
					     through table TRKOPTS.
 
         OPTION          BILLNO or           Options
	                 CELL                This subfield consists of refinements BILLNO and
			                     CELL.  To specify the billing number, enter 
					     "BILLNO".  To enter the configuration of the 
					     intertoll trunk type, enter "CELL".  This option 
					     is valid only for North America.

         BILLNO          Up to an            Billing Number
	                 11-digit            If the entry in subfield OPTION is BILLNO, enter 
			 billing number      the billing number that is used to populate the 
			                     originating number field in the Cellular Mobile 
					     Carrier (CMC) AMA record and the associated equal 
					     access AMA record.  This option is valid only for 
					     North America.

         CELL            2A, 2B, or          Cell
	                 NILCELL             If the entry in subfield OPTION is CELL, enter 
			                     the configuration of the intertoll trunk type. 
					     Datafilling this option as 2A indicates that the 
					     intertoll trunk is configured as a CELL type 2A 
					     SS7 trunk.  Datafilling this option as 2B 
					     indicates that the intertoll trunk is 
					     configured as a CELL type 2B SS7 trunk. 
					     This option is valid only for North America.

         OPTION          E911                Option
	                                     This subfield consists of refinements ESCO, ESN, 
					     E911SIG, ORIGHOLD, and ECPHTIME.  To specify the 
					     default ESCO for this trunk, enter "ESCO".  To 
					     enter the default ESN for this trunk, enter "ESN". 
					     To enter the type of signalling to be used by this 
					     trunk, enter "E911SIG".  This option is valid only 
					     for North America.

         ESCO            0000 to 9999        Emergency Service Central Office
	                                     If the entry in subfield OPTION is E911, enter 
					     the default ESCO number representing the end 
					     office at which the E911 trunk originated. 
					     This option is valid only for North America.

         ESN             0 to 15,999         Emergency Service Number
	                                     If the entry in subfield OPTION is E911, enter 
					     the default ESN associated with the emergency 
					     service zone that is used to obtain the DN of 
					     the primary PSAP to which this call is to be 
					     default routed.  This option is valid only for 
					     North America.

         E911SIG         E911_STD,           Enhanced 911 Signaling
	                 E911_CHG,           This entry determines whether the DMS switch uses 
			 WRLS_STD,           the calling party number or the charge number to 
			 WRLS_CLD            obtain the callback or routing number or both.

			                     If you enter "E911_STD", the first attempt uses the 
					     calling party number.  The second attempt uses the 
					     charge number.

                                             If you enter "E911_CHG", the first attempt uses the 
					     charge number.  The second attempt uses the calling 
					     party number.

                                             If you enter "WRLS_STD", the first attempt uses the 
                                             calling party number.  There is no second attempt.

                                             Note: The WRLS_STD entry applies only to incoming 
                                             trunks that handle only wireless emergency calls
                                             
                                             If you enter "WRLS_CLD", the first attempt uses the 
					     calling party number.  There is no second attempt.
                                         

                                             Note 1: The WRLS_CLD entry applies only to
					     incoming trunks that handle only wireless emergency
					     calls directly from a mobile switching center.  The
					     mobile switching center sends the PANI and callback
					     number in a non-standard format.

         TDMPRFX         0 to 15             Tandem Prefix Value
	                                     If datafilled with a non-zero value, this suboption
					     indicates the originating E911 tandem in a dual
					     super tandem-tandem network.  A new Generic Digits
					     Parameter (GDP) is built in the IAM to transport
					     the TDMPRFX to table E911TDRT.

                                             The delivery of the TDMPRFX value in the new GDP 
					     behaves as follows:

                                             * If a non-zero TDMPRFX is datafilled against an 
					       ISUP IT trunk with the E911 option, then a GDP 
					       is built containing the TDMPRFX and sent on 
					       outgoing 911 calls.

					     * If the TDMPRFX datafill against an ISUP IT trunk 
					       has the default value of "0", and if no TDMPRFX 
					       is received via a GDP, then outgoing 911 calls 
					       do not build the GDP containing the TDMPRFX.

                                             * If a GDP containing the TDMPRFX is received at 
					       an E911 tandem, the value is stored.  It takes 
					       precedence over any datafilled TDMPRFX values 
					       if the TDMPRFX datafilled in table TRKGRP is 
					       non-zero.  If datafilled value is "0", the 
					       TDMPRFX from GDP is dropped and not used for 
					       further processing.

					     * If the TDMPRFX datafill against an ISUP IT 
					       trunk has a default value of "0" and no GDP 
					       is received, the TDMPRFX is ignored.

					     * On an ONP, if a non-zero TDMPRFX is not 
					       datafilled, a default value of "0" is 
					       transferred.

					     The TDMPRFX field be datafilled in the Super 
					     E911 tandems for incoming ISUP IT trunks with 
					     the E911 option.  The TDMPRFX field in other
					     E911 tandems should not be datafilled, rather 
					     the value should be left at the default of zero.

         ORIGHOLD        Y or N              Originator Hold
	                                     Enter "Y" (yes) if the end office at which this 
					     trunk originated supports the operator hold 
					     function.  When ORIGHOLD is active, the 
					     originator of an E911 call cannot disconnect the 
					     call.  Enter "N" to make ORIGHOLD inactive.

         ECPHTIME        0 to 255            Enhanced Call Party Hold
	                                     This subfield indicates the number of seconds 
					     that ECPH remains active.  ECPHTIME prevents a 
					     caller from disconnecting a call before the call 
					     is answered and before the timer expires.  Zero 
					     (0) deactivates ECPH.
----------------------------------------------------------------------------------------------
-End-

Datafill Example

An example of datafill for table TRKGRP and outgoing trunk group type IT is shown below.  This example was datafilled in accordance with the following datafill requirements:

The following example MAP display shows sample datafill for table TRKGRP, type IT:


GRPKEY       GRPINFO
_____________________________________________________________________________
OTWAO11MG00  IT 21 TLD NCTC OG TC MIDL 613 NPRT NSCR 613 000 Y N CHGNUM ALL $


Datafill (Two-Way Intertoll)

The following table lists datafill for table TRKGRP, type IT.

----------------------------------------------------------------------------------------------
Field Descriptions - Two-Way Intertoll
         
Field    Subfield        Entry               Explanation and Action
----------------------------------------------------------------------------------------------
GRPKEY                   See subfield        Group Key
                                             This field consists of subfield CLLI.
						                                                                                 
         CLLI            Alphanumeric        Common Language Location Identifier
	                 (1 to 16            Enter the Common Language Location Identifier
	                 characters)         (CLLI) name assigned to the trunk group in
	                                     table CLLI. 
----------------------------------------------------------------------------------------------
         GRPINFO         See subfields       Variable Group Information
                                             This field consists of subfields GRPTYP,
					     TRAFSNO, PADGRP, NCCLS, DIRDATA, TRAFCLS,
					     SELSEQ, CONNGNPA, PRTNM, SCRNCL, SNPA,
					     TERMTC, TOLLCOMP, CCWKVLD, and OPTIONS.
					     Refer to section "General Field Information"
					     in table TRKGRP for information on an alternate
					     structure for this field that results from the
					     datafill of table CUSTFLDS.

         GRPTYP          IT                  Group Type
			                     Enter "IT" for the intertoll trunk group type.

         TRAFSNO         Numeric             Traffic Separation Number
	                 (0 to 127)          Enter the outgoing traffic separation number
				             assigned to the trunk group.  If it is not
					     required, enter "0" (zero).
											                                                
					     If switching unit has feature package NTX085AA
					     (Traffic Separation Peg Count), enter a number
					     between 1 and the lower value of office 
					     parameters TFAN_IN_MAX_NUMBER and 
					     TFAN_OUT_MAX_NUMBER in table OFCENG.

					     For switching units without feature package 
					     NTX085AA, enter 1 to 15.

					     Incoming and outgoing traffic separation 
					     numbers 1 to 9 should be reserved for 
					     generic traffic separation numbers.

					     Refer to the description of table TFANINT 
					     for information.

         PADGRP          Alphanumeric        Pad Group
	                 (1 to 5             Enter the name of the pad group assigned to the
			 characters)         trunk group in table PADDATA.  Refer to the 
			                     description of table PADDATA for information.

         NCCLS           NCBN, NCID,         Operational Measurements No-Circuit Class
                         NCIM, NCIT,         Enter the Operational Measurements (OM)      
                         NCLT, NCOF,         no-circuit class to indicate which OM register
                         NCON, NCOT,         is to be incremented when treatment Generalized
                         NCRT, NCTC,         No-Circuit (GNCT) occurs.  Refer to table TRKGRP
                         or NOSC             and the Operational Measurements Reference Manual, 
			                     for information.
                                           
         DIRDATA         See subfield        Direction Data
	                                     This field consists of subfield DIR.

         DIR             2W                  Direction
	                                     Enter "2W' to specify that the direction of traffic 
					     flow is two-way.

					     If office parameter TRK_OOS_CHK_ON in table OFCVAR 
					     is set to "Y" (yes), all trunks in the group must 
					     be busy before changing the value of this field by 
					     Data Modification Order (DMO).

         TRAFCLS         Alphabetic          Traffic Usage Class
	                                     Enter the traffic usage class assigned to the trunk
                                             group.  Refer to the general section of table
					     TRKGRP for additional information.

         SELSEQ          ASEQ, CCWCTH,       Select Sequence 
	                 CWCTH, DSEQ,        If the far-end is a link list switcher with most
			 LIDL, MIDL,         idle (MIDL) or least idle (LIDL) trunk selection,
			 or WIDEBAND         enter "LIDL" or "MIDL" respectively.  If the far-
			                     end is not a link list switcher and sequential 
					     selection does not apply, enter "MIDL".

                                             If the far-end is not a link list switcher and 
					     sequential selection applies (feature package 
					     NTX244AB [Enhanced Sequential Trunk Hunting] 
					     must be present), enter:


					     * CWCTH for clockwise or CCWCTH for
					       counterclockwise circular trunk hunting from 
					       the most recently released trunk in the trunk 
					       group, based on the order of trunk members in 
					       table TRKMEM, when the far-end is CCWCTH or 
					       CWCTH respectively.

					     * ASEQ for ascending or DSEQ for descending 
					       sequential selection, based on the order of 
					       trunk members in table TRKMEM, when far-end 
					       is DSEQ or ASEQ respectively.

					     * WIDEBAND and datafill refinements WBSELSEQ, 
					       WBGRPING, and WBSEARCH to specify DS-0's 
					       selection sequence, time slot arrangement 
					       types, and time slot search method.

                                             Note: Refer to the description of table TRKGRP 
					     for information on field SELSEQ.

                                             Note: The selection sequence for an existing
					     trunk group can be changed from ASEQ to DSEQ,
					     or from DSEQ to ASEQ, if all the members are 
					     made Installation Busy (INB) or Unequipped 
					     (UNEQ).  The selection method for an existing 
					     trunk group cannot be changed.  To change the 
					     selection method for an existing trunk group 
					     from ASEQ or DSEQ to CWCTH or CCWCTH, or to 
					     MIDL or LIDL, define a new trunk group, as 
					     follows: create a new trunk group with the 
					     required trunk selection method, delete the 
					     individual trunks from the old trunk group, 
					     and add the trunks to the new trunk group.

         WBSELSEQ        ASEQ or DSEQ        Wideband Selection Sequence
	                                     Datafill this field if the entry in field 
					     SELSEQ is WIDEBAND.  Enter "ASEQ" to specify 
					     that the wideband trunks are selected in 
					     ascending order from the first idle trunk 
					     on the search list, or enter "DSEQ" to
					     specify that they are selected in descending 
					     order from the last idle trunk on the search 
					     list.  The order of trunks in the search list 
					     is determined by the order in which the trunk 
					     groups are datafilled in table TRKMEM.

         WBGRPING        FIXED or FLOATING   Wideband Boundary Preference
	                                     Datafill this field if the entry in field 
					     SELSEQ is WIDEBAND.  Enter the wideband 
					     boundary preference.  The value FIXED 
					     specifies that only the idle trunks within 
					     a specific time slot frame are selected. 
					     This value is only valid for Local Exchange 
					     Carriers (LEC).  The value FLOATING specifies 
					     that any number of consecutive idle trunks in 
					     a trunk group are selected.

         WBSEARCH        BESTFIT             Wideband Search
	                 or FIRSTFIT         Datafill this field if the entry in field 
			                     SELSEQ is WIDEBAND.  Enter the wideband search 
					     algorithm.  The value BESTFIT finds the smallest 
					     segment of idle channels (DS-0s) among trunks 
					     (DS-1s) within a trunk group to accommodate a 
					     wideband call, according to the boundary preference
					     (FIXED or FLOATING) specified.  FIRSTFIT finds the 
					     first segment of idle DS-0s that can accommodate a 
					     wideband call, according to the boundary preference
					     specified.

         CONNGNPA        Numeric             Connecting Numbering Plan Area
	                 (3-digits)          Enter the numbering plan area code of the switching
			                     unit at which the outpulsed digits are translated.

         PRTNM           Alphanumeric        Standard Pretranslator Name
	                 (1 to 4             If standard pretranslation is required on the 
			 characters)         incoming side of the trunk group, enter the 
			 or NPRT             name of the standard pretranslator to which 
			                     digit translation routes after the receipt of 
					     one digit.

                                             If standard pretranslation is not required, 
					     enter "NPRT".

					     If office parameter TRK_OOS_CHK_ON in table 
					     OFCVAR is set to "Y", all trunks in the 
					     group must be busy before changing the value 
					     of this field by DMO.

         SCRNCL          Alphanumeric        Class-of-Service Screening Name
	                 (1 to 32            If class-of-service screening is required on 
			 characters)         the incoming side of the trunk group, enter 
			 or NSCR             the name of the class-of-service screening to 
			                     which digit translation is routed.  If 
					     class-of-service screening is not required, 
					     enter "NSCR".

         SNPA            Numeric             Serving Numbering Plan Area
	                 (3-digits)          Enter the serving NPA code to which the trunk 
			                     group belongs.  If office parameter 
					     TRK_OOS_CHK_ON in table OFCVAR is set to "Y", 
					     all trunks in the group must be busy before 
					     changing the value of this field by DMO.

         TERMTC          Numeric             Terminating Toll Center
	                 (3-digits)          If the switching unit where the outpulsed 
			                     digits are translated is assigned a terminating
					     toll center code, enter the terminating toll 
					     center code.  If there is no terminating toll 
					     center code, enter "000".

         TOLLCOMP        Y or N              Toll Completing
	                                     Enter "Y" if the trunk group is toll completing;
					     otherwise, enter "N".

         CCWKVLD         Y or N              Carrier Connect Wink Valid
	                                     Enter "Y" if carrier connect winks in equal 
					     access international calls are regenerated. 
					     Otherwise, enter "N".  Since most non-DMS 
					     Equal Access End Offices (EAEO) and Access 
					     Tandems (AT) cannot handle this wink, the value
					     "N" should be datafilled in these cases.

         OPTIONS         See subfield        Options 
	                                     Datafill subfield OPTION and the corresponding 
					     refinements for the desired trunk option.  Enter
					     a "$" (dollar sign) to indicate the end of the 
					     options vector.

         OPTION          AIN, BCNAME,        Option
			 BILLNO, BLOCKNB,    The following options can be datafilled: 
	                 CELL, E911,				     
		         CHGNUM, LNP	     * AIN - Advanced Intelligent Network 
					       This option appears on the MAP display 
					       but is not supported.  This functionality 
					       is moved to table TRKAIN.

                                             * BCNAME - Bearer Capability Name 
					       Datafill refinement BCNAME.

					     * BILLNO - Billing Number 
					       This option allows datafilling a
					       billing number for the trunk group. 
					       Datafill refinement BILLNO.

					     * BLOCKNB - This option specifies whether 
					       narrow band calls are blocked on the trunk 
					       group.  This option can only be set when 
					       field SELSEQ = WIDEBAND.  No refinements 
					       require datafill.

					     * CELL - This option allows specifying the 
					       configuration of the intertoll trunk type. 
					       Datafill refinement CELL_SS7_TYPE.  This 
					       option is valid only for North America.
                                             
                                             Note: Option CELL is not compatible with 
					           option E911.

                                             * E911 - This subfield consists of refinements 
					       ESCO, ESN, E911SIG, ORIGHOLD, ECPHTIME, OFBSR, 
					       and TDMPRFX.  To specify the default ESCO for 
					       this trunk, enter "ESCO".  To enter the default
					       ESN for this trunk, enter "ESN".  To enter the 
					       type of signalling to be used by this trunk, 
					       enter "E911SIG".  This option is valid only for 
					       North America.  To indicate that the OFBSR is 
					       used, type "Y".  To enter the default TDMPRFX, 
					       type "0".

					     * CHGNUM - This option specifies the Charge Number
					       Delivery option and contains subfield 
					       CHGNO_TRAFTYPE with the values of PBX or ALL. 
					       The CHGNUM option sends a charge number and 
					       Originating Line Information (OLI) parameter 
					       with the Initial Address Message (IAM). 
					       Select the refinements PBX or ALL.

					     * LNP - Local Number Portability
					       This option allows specifying a default Location
					       Routing Number (LRN) for the trunk group. 
					       Datafill refinement LRN.

                                             Note 1: If no options apply, leave this field 
					             blank.
					     
                                             Note 2: The OSS7 option OSNC assigned through table 
					             TRKOPTS requires the CHGNUM ALL option.

         BCNAME          Alphanumeric        Bearer Capability Name
	                 (1 to 16            If the entry in field OPTION is BCNAME, enter the 
			 characters)         bearer capability to be used by this trunk group. 
			                     Refer to table BCDEF for the current list of 
					     available bearer capabilities.  If field OPTION 
					     and refinement BCNAME are left blank, the default 
					     bearer capability of the central office is used.

         BILLNO          Up to an            Billing Number
	                 11-digit            If field OPTION = BILLNO, enter the billing number 
			 billing number      that is used to populate the originating number 
			                     field in the Cellular Mobile Carrier (CMC) AMA 
					     record and the associated equal access AMA record. 
					     This option is valid only for North America.

         BCNAME          Alphanumeric        Bearer Capability Name
	                 (1 to 16            If the entry in field OPTION is BCNAME, enter the 
			 characters)         bearer capability to be used by this trunk group. 
			                     Refer to table BCDEF for the current list of 
					     available bearer capabilities.  If field OPTION 
					     and refinement BCNAME are left blank, the default 
					     bearer capability of the central office is used.

         BILLNO          Up to an            Billing Number
	                 11-digit            If field OPTION = BILLNO, enter the billing number 
			 billing number      that is used to populate the originating number 
			                     field in the Cellular Mobile Carrier (CMC) AMA 
					     record and the associated equal access AMA record. 
					     This option is valid only for North America.

         CELL_SS7_TYPE   2A, 2B,             Cell
	                 or NILCELL          If field OPTION = CELL, enter the configuration of 
			                     the intertoll trunk type.  Datafilling this option 
					     as 2A indicates that the intertoll trunk is 
					     configured as a CELL type 2A SS7 trunk.  
					     Datafilling this option as 2B indicates that the 
					     intertoll trunk is configured as a CELL type 2B 
					     SS7 trunk.  This option is valid only for North 
					     America.

         ESCO            0000 to 9999        Emergency Service Central Office
	                                     If the entry in subfield OPTION is E911, enter
					     the default ESCO number representing the end 
					     office at which the E911 trunk originated. 
					     This option is valid only for North America.

         ESN             0 to 15,999         Emergency Service Number
	                                     Subfield OPTION entry E911 requires the default 
					     ESN for the emergency service zone of the primary
					     PSAP DN where the call is default routed.  This 
					     option is valid only for North America.

         E911SIG         E911_STD,           Enhanced 911 Signaling
	                 E911_CHG,           This entry determines whether the DMS switch uses 
			 WRLS_STD,           the calling party number or the charge number to 
			 WRLS_CLD            obtain the callback or routing number or both.

			                     If you enter "E911_STD", the first attempt uses the 
					     calling party number.  The second attempt uses the 
					     charge number.

					     If you enter "E911_CHG", the first attempt uses the 
					     charge number.  The second attempt uses the calling 
					     party number.

					     If you enter "WRLS_STD', the first attempt uses the 
					     calling party number.  There is no second attempt.

                                             Note: The WRLS_STD entry applies only to incoming 
					     trunks that handle only wireless emergency calls.

                                             If you enter "WRLS_CLD", the first attempt uses the 
					     calling party number.  There is no second attempt.

                                             Note 1: The WRLS_CLD entry applies only to incoming 
					     trunks that handle only wireless emergency calls 
					     directly from a mobile switching center.  The
					     mobile switching center sends the PANI and
					     callback number in a non-standard format.

                                             Note 2: The E911SIG option is valid only for North 
					     America.

         ORIGHOLD        Y or N              Originator Hold
	                                     Enter "Y" (yes) if the end office at which this 
					     trunk originated supports the operator hold 
					     function.  When ORIGHOLD is active, the originator 
					     of an E911 call cannot disconnect the call. 
					     Enter "N" to make ORIGHOLD inactive.

         ECPHTIME        0 to 255            Enhanced Call Party Hold
	                                     This subfield indicates the number of seconds that
					     ECPH remains active.  ECPHTIME prevents a caller 
					     from disconnecting a call before the call is 
					     answered and before the timer expires.  
					     Zero (0) inactivates ECPH.

         OFBSR           Y or N              Off-Board Selective Routing Database
	                                     Enter "Y" if facility uses the OFBSR for 
					     translations and routing of both MF and ISUP 
					     E911 trunks.

         TDMPRFX         0 to 15             Tandem Prefix Value
	                                     If datafilled with a non-zero value, this 
					     suboption indicates the originating E911 
					     tandem in a dual super tandem-tandem network. 
					     A new Generic Digits Parameter (GDP) is built 
					     in the IAM to transport the TDMPRFX to table 
					     E911TDRT. 
					     
					     The delivery of the TDMPRFX value in the new 
					     GDP behaves as follows:

					     * If a non-zero TDMPRFX is datafilled against 
					       an ISUP IT trunk with the E911 option, then 
					       a GDP is built containing the TDMPRFX and 
					       sent on outgoing 911 calls.

					     * If the TDMPRFX datafill against an ISUP IT 
					       trunk has the default value of "0", and if 
					       no TDMPRFX is received via a GDP, then 
					       outgoing 911 calls do not build the GDP 
					       containing the TDMPRFX.

					     * If a GDP containing the TDMPRFX is received 
					       at an E911 tandem, the value is stored. 
					       It takes precedence over any datafilled 
					       TDMPRFX values if the TDMPRFX datafilled 
					       in table TRKGRP is non-zero.  If datafilled 
					       value is "0", the TDMPRFX from GDP is dropped
					       and not used for further processing.

					     * If the TDMPRFX datafill against an ISUP IT 
					       trunk has a default value of "0" and no GDP 
					       is received, the TDMPRFX is ignored.

					     * On an ONP, if a non-zero TDMPRFX is not 
					       datafilled, a default value of "0" is 
					       transferred.

					     The TDMPRFX field be datafilled in the Super 
					     E911 tandems for incoming ISUP IT trunks with 
					     the E911 option.  The TDMPRFX field in other 
					     E911 tandems should be left at the default of 
					     zero.

         CHGNO_TRAFTYPE  PBX or ALL          Charge Number Traffic Type
	                                     If the entry in field OPTION is CHGNUM, select 
					     refinement PBX to provide the CN and OLI 
					     parameters for calls originating on PBX trunks. 
					     Select "ALL" to provide the CN and OLI parameters
					     for outgoing calls on the following originating 
					     agents: POTS, RES, IBN, or BRI lines; PRI and 
					     ISUP trunks; IBNT2, IBNTI, or PBX trunks; 
					     attendant consoles, or a supported agent routed 
					     through a Virtual Facility Group (VFG).

	                                     Select "ALL" to provide OSS7 option OSNC assigned
					     through table TRKOPTS.

         LRN             10-digit            Location Routing Number
	                 directory           If field OPTION = LNP, datafill a 10-digit 
			 number              directory number that identifies the adjacent 
			                     incoming office and is used in recording AMA 
					     module 720 of the calling number.  This option 
					     is used if the LRN is not signalled.  Exactly 
					     10 digits must be datafilled.
----------------------------------------------------------------------------------------------
-End-

Datafill Example

An example of datafill for table TRKGRP and two-way trunk group type IT is shown below.  This example was datafilled in accordance with the following datafill requirements:

The following example MAP display shows sample datafill for table TRKGRP, type IT:


GRPKEY        GRPINFO
__________________________________________________________________________________________
OTWAON2301T0  IT 23 TLD NCIT 2W IT WIDEBAND ASEQ FIRSTFIT 613 NPRT NSCR 613 025 N N BCNAME
              56KDATA CHGNUM ALL $


An example of datafill for table TRKGRP and incoming trunk group type IT is shown in the following figure.  This example is valid only for North America, and is datafilled in accordance with the following datafill requirements:





























>TABLE TRKGRP
>POS E911ICS7
>ADD
GRPTYP: 2W
>
TRAFSNO: 0
.........................
.........................
OPTION: E911
>
ESCO: 0747
>
ESN: 113
>
E911SIG: E911_STD
>
ORIGHOLD: N
>
ECPHTIME: 0
>
OFBSR: N
>
TDMPRFX:
>15
OPTION:
>$
WARNING: THE E911 OPTION SHOULD BE ASSIGNED ONLY TO TRUNKS
         WHICH ARE DEDICATED TO EMERGENCY TRAFFIC.
TUPLE TO BE CHANGED:
         E911ICS7 IT 0 ELO NCRT IC NIL MIDL 613 613 AT1 NSCR
         613 000 N N (E911 0747 113 E911_STD N N 0 15) $
ENTER Y TO CONFIRM, N TO REJECT OR E TO EDIT.