T1 Trunking (with ANI/DNIS Compatibility)
The T1/PRI Interface gives the system T1 trunking ability. This blade uses a single universal slot and provides up to 24 trunk circuits. In additional to providing digital-quality trunking, the T1/PRI Interface allows you to have maximum trunking ability with fewer blades. This in turn makes more universal slots available for other functions.
You can program each T1/PRI for any combination of the following trunks:
CO loop start CO ground start Direct Inward Dialing Tie Lines 2
CD-PRTA uses the first block of 24 consecutive trunks. For example, if you have a CD-4COTB with PZ-4COTF installed for trunks 1~8, the T1/PRI Interface automatically uses trunks 9~32. If you have CD-4COTB with PZ-4COTF installed for trunks 1~8 and 17~24, the T1/PRI uses trunks 25~48. The T1/PRI Interface cannot use trunks 9~16 (even if available) since they are not part of a consecutive block of 24 trunks. Each T1/PRI requires that 24 consecutive ports be available in the system even if not all the ports are used otherwise the blade does not function.
The CD-PRTA can be programmed as a 4/8/12/16/20/24 port Fractional T1/PRI.
The system is compatible with Telco T1 Automatic Number Identification (ANI) and Dialed Number Information Service (DNIS) services. A compliment to Caller ID service, ANI/DNIS Compatibility provides:
The Receive Format must be set as ANI DNIS in Program 34-09-01 option 4, which is treated as a Feature Group D format. (Example of ANI Information KP009727517645STKP7100ST.)