Table Name : Automatic Dial Back
Data Forms : 2550A, B
Functional Description of Table DIALBACK
Table DIALBACK enhances the security of dial-up ports.
The current method of dialing into a DMS from a remote site consists of the following steps:
- Place the call.
- Receive an answer tone.
- Send an originate tone.
- Initiate login by entering <BREAK> login.
- Supply the required user identification (userID) and password.
Once the userID and password are verified, the remote user can access the system. If the userID or password, or both, are incorrect, access is not allowed. The knowledge of a userID and password allow anybody to gain access to a DMS switch. Feature BC1043 (Automatic Dial Back) eliminates this possibility by providing a second layer of security.
After a remote user logs in, the system disconnects the modem. It then calls the user back and the remote user is required to log in again. Only after this second login is the user allowed access to the DMS. A remote knowing a dial-back ID and password is not able to access the system unless the call originates from the correct remote site.
Feature package NTX293AA (Enhanced Security Package II) is required for dial-back to function properly.
Datafill Sequence
There is no requirement to datafill other tables prior to table DIALBACK.
Table Size
Memory is dynamically allocated up to a maximum of 256 tuples.
Customer Data Schema Reference Manual, volume 3 of 8 BCS36 and up