Designated channel terminating method and apparatus

Details Designated channel terminating method and apparatus Designated channel terminating method and apparatus

1994-12-28

1998-02-10

Hong, Harry S.

Telephonic communications

Call or terminal access alarm or control

At switching center

379127, 379233, 379246, H04M 300, H04M 1500, H04M 700

Patent

active

057177465

ABSTRACT:
In a designated channel terminating method and apparatus, a B channel to which a call is to be terminated is determined by referring to a registration table in terminating processing of the call. Telephone numbers are registered in the registration table upon registration/designation by subscribers via subscriber circuits or registered by a registering operation through a terminal in a switching center. The method includes a permission/exclusion selecting step and a preferential/absolute selecting step. In the permission/exclusion selecting step, it is checked whether a purpose of registration with respect to said registration table is to designate a B channel to which a call from a specific calling party is to be terminated or designate a B channel to which the call should not be terminated. In the preferential/unconditional processing selecting step, it is determined whether B channel designation is to be preferentially or absolutely processed.

REFERENCES:
patent: 4850012 (1989-07-01), Mehta et al.
patent: 5023868 (1991-06-01), Davidson et al.
patent: 5200994 (1993-04-01), Sasano et al.
patent: 5268958 (1993-12-01), Nakano
patent: 5425089 (1995-06-01), Chan et al.
patent: 5436957 (1995-07-01), McConnell
patent: 5452346 (1995-09-01), Miyamoto
patent: 5572585 (1996-11-01), Tsutsui

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