Method and apparatus for handling DTMF requests when...

Details Method and apparatus for handling DTMF requests when... Method and apparatus for handling DTMF requests when...

2011-05-10

2011-05-10

Addy, Anthony S (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S432100, C455S403000, C455S435100, C455S564000, C379S090010, C379S067100, C379S201020, C379S283000

Reexamination Certificate

active

07941146

ABSTRACT:
In an embodiment of the method for handling subscriber input during interswitch handover of a call from a first switching station to a second switching station, DTMF digits received at the second switching station are sent in a message to the first switching station. The first switching station then performs an operation on the received digits such as playing the DTMF tones to a network or triggering a service.

REFERENCES:
patent: 5140627 (1992-08-01), Dahlin
patent: 5835574 (1998-11-01), Lam
patent: 6151514 (2000-11-01), Cheng et al.
patent: 6285880 (2001-09-01), Gagnon et al.
patent: 6574323 (2003-06-01), Manuel et al.
patent: 6693994 (2004-02-01), Stern
patent: 7630488 (2009-12-01), Picha
patent: 2003/0137952 (2003-07-01), Menon

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