Multi-port caller ID-based telephone ringback test device

Details Multi-port caller ID-based telephone ringback test device Multi-port caller ID-based telephone ringback test device

1996-05-16

1998-08-25

Loomis, Paul

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Testing of subscriber loop or terminal

379 21, 379142, H04M 124, H04M 308, H04M 156, H04M 1506

Patent

active

057990603

ABSTRACT:
A multi-ported, caller ID-based test unit, which may be installed in the central office of a public switched telephone network, is capable of determining the telephone number, subscriber name and various other information associated with the subscriber line used to access to the test device, and is operative to conduct various tests of a telephone circuit from which a call to the test device is placed. These tests include exercising a caller identification, call waiting class of service, testing the ability of the telephone circuit to receive incoming calls, and testing the operation of a message-waiting indicator of a telephone unit coupled to the telephone circuit, as well as the ability to conduct a data session with a remote terminal using the test unit's data port.

REFERENCES:
patent: 4764949 (1988-08-01), Faith et al.
patent: 4777645 (1988-10-01), Faith et al.
patent: 5583912 (1996-12-01), Schillaci et al.

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