Method and apparatus for providing out of band dialed digit sign

Details Method and apparatus for providing out of band dialed digit sign Method and apparatus for providing out of band dialed digit sign

1997-12-09

2000-06-06

Chin, Wellington

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455466, 455556, 455557, 370349, 370522, H04B 106, H01S 400, H04J 324, H04J 312

Patent

active

060730285

ABSTRACT:
In a fixed cellular telephone system, the taking of a standard wireline telephone set off-hook triggers the establishment of a voice/traffic channel connection between a connected fixed cellular terminal and the cellular system switch. Digits of the telephone number of the party to which the call is directed are entered through the telephone set. These digits are then transmitted by the fixed cellular terminal to the serving cellular network switch as out of band data messages transported over a control channel supported by the established voice/traffic channel connection. The data message digits are then converted to dual tone multi-frequency (DTMF) tones, with the tones processed in a conventional manner to complete the call connection to the called party.

REFERENCES:
patent: 4220821 (1980-09-01), Lucas
patent: 4658096 (1987-04-01), West, Jr. et al.
patent: 4959851 (1990-09-01), Tobolski, Jr. et al.
patent: 5117450 (1992-05-01), Joglekar et al.
patent: 5410728 (1995-04-01), Bertiger et al.
patent: 5475735 (1995-12-01), Williams et al.
patent: 5535260 (1996-07-01), Zicker et al.
patent: 5724656 (1998-03-01), Vo et al.
PCT International Search Report, Apr. 20, 1999, PCT/US 98/25951.
"European Digital Cellular Telecommunications System (Phase 2) Support of DTMF via the GSM System", XP-002095606 ETSI 1993, GSM 03.14, Version 4.0.D., Jan. 21, 1993.

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