Advanced call waiting processing

Details Advanced call waiting processing Advanced call waiting processing

1996-09-30

1998-12-08

Tsang, Fan S.

Telephonic communications

Special services

Call waiting

379 671, 379212, H04M 358

Patent

active

058481427

ABSTRACT:
An enhanced call waiting (ECW) feature is provided by a switch serving a called subscriber who, while still on a first telephone call, receives a subsequent telephone call. According to ECW, the switch provides service so that the called party may select from processing treatments for the second call which, in addition to the conventional processing of a) placing the first telephone call on hold and answering the second telephone call request, or b) simply declining the subsequent telephone call request, include treatments such as: 1) declining acceptance of the subsequent telephone call request but signaling the subsequent telephone call originator, via a message, to call again at a predetermined time or at the end of a specified period of time; 2) declining acceptance of the subsequent telephone call request and signaling the subsequent telephone call originator, via a message, that the called subscriber will return the call at a predetermined time or at the end of a specified period of time; 3) bridging the subsequent telephone call originator with the first telephone call to establish a conference; 4) directing, via a message, that the telephone call be transferred to another telephone number, e.g., a secretary or voice messaging system, that is specified as part of the message; or 5) disabling call waiting while the called subscriber remains on the first call, (i) for this particular caller, (ii) for all callers except those listed on a so-called "exception" list, or (iii) for all callers.

REFERENCES:
patent: 4723273 (1988-02-01), Diesel et al.
patent: 5007076 (1991-04-01), Blakley
patent: 5263084 (1993-11-01), Chaput et al.
patent: 5471519 (1995-11-01), Howe et al.
patent: 5764748 (1998-06-01), Rosenthal et al.

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