Switch control method for dual tone multi-frequency service of M

Details Switch control method for dual tone multi-frequency service of M Switch control method for dual tone multi-frequency service of M

1996-06-24

1999-04-20

Urban, Edward F.

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455560, H04Q 720

Patent

active

058965718

ABSTRACT:
A switch control method for DTMF service in a mobile switching center, is disclosed including the steps of (a) calling an ARS service system in a mobile station receiving, by a switch controller of an mobile exchange, a switch connection request for DTMF service input through a call controller of the mobile exchange through a base station if DTMF service is requested from the mobile station allocating a channel, requesting connection a lower-order processor; and sending a response after connection to the mobile station; and (b) receiving and processing a switch release request input to the call controller through the mobile station during communication after the step (a).

REFERENCES:
patent: 4866759 (1989-09-01), Riskin
patent: 4922528 (1990-05-01), Hubert et al.
patent: 5140627 (1992-08-01), Dahlin
patent: 5610972 (1997-03-01), Emery

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