Telephonic communications – Call or terminal access alarm or control
Patent
1996-12-27
1999-06-15
Matar, Ahmad F.
Telephonic communications
Call or terminal access alarm or control
379196, 379207, H04M 342
Patent
active
059129590
ABSTRACT:
A method of and system for completing a telephone call from an originating number to a password protected destination number at a terminating switch. The system receives dialed digits from the originating number, and compares the dialed digits received to candidate dialing schemes. Whenever a sequence of dialed digits received satisfies a dialing scheme for a call to a destination number, the system waits to receive trailing dialed password digits. When the system has received the trailing digits, the system sets a destination number equal to the sequence of dialed digits received, and sets a password equal to the trailing digits received. The system then forwards a call request with the set destination number and the set password to the terminating switch for call processing. The terminating switch determines whether the destination number has a password associated with it, and if so, completes the call only when the set password matches the password associated with the destination number.
REFERENCES:
patent: 4266098 (1981-05-01), Novak
patent: 4277649 (1981-07-01), Sheinbein
patent: 4782508 (1988-11-01), Borchering et al.
patent: 4937854 (1990-06-01), Sarakas
patent: 5157712 (1992-10-01), Wallen, Jr.
Matar Ahmad F.
MCI Communications Corporation
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