Calling terminal controlled call coverage

Details Calling terminal controlled call coverage Calling terminal controlled call coverage

1995-06-20

1996-11-26

Zele, Krista M.

Telephonic communications

Special services

Call diversion

379210, 379214, 379 96, H04M 342, H04M 1100

Patent

active

055793835

ABSTRACT:
A system that allows a calling party to quickly select a call coverage system to be utilized if a call is unanswered. The calling party can preselect the call coverage before the call is placed, and the called telephone terminal automatically transfers the call to the selected call coverage service if the called party does not answer. Alternatively, the called telephone terminal transmits back the available call coverage options if the incoming call is not answered. In response, the calling telephone terminal displays the available call coverage options to the caller, and the caller selects the call coverage option desired. The calling telephone terminal then transmits the selected call coverage option to the called telephone terminal which transfers the call to the selected call coverage service. Also, when the caller wants only to leave a message on a particular call coverage system and not talk to the called party, the caller preselects the call coverage option and requests to only leave a message for the calling telephone terminal (call coverage only). Upon receiving a message defining call coverage only, the called telephone terminal immediately transfers the call to the selected call coverage system.

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AT&T Integrated Services Digital Network (ISDN) Basic Rate Interface Specification, Technical Reference, AT&T 801-802-100, May 1989, pp. i-IV-A-59.
"Integrated Services Digital Networks, ISDN: an Introduction", Stollings, 1989, pp. 304-314.

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