Pre-connection telephony data signal exchanges

Details Pre-connection telephony data signal exchanges Pre-connection telephony data signal exchanges

2007-04-24

2007-04-24

Popovici, Dov (Department: 2625)

Facsimile and static presentation processing

Facsimile

Auxiliary signal

C358S436000, C379S100170

Reexamination Certificate

active

10325121

ABSTRACT:
A method for conveying digital information can include initiating a telephone connection to a receiving device. Prior to establishing a voice channel connection with the receiving device, supplemental data can be digitally encoded into a CNG transmission. The CNG transmission can be conveyed via a CNG channel, wherein the CNG channel is capable of transporting a facsimile calling tone signal.

REFERENCES:
patent: 5396342 (1995-03-01), Meyer
patent: 5517556 (1996-05-01), Pounds et al.
patent: 6317224 (2001-11-01), Lutgen et al.
patent: 6327053 (2001-12-01), Meng
patent: 2001/0053001 (2001-12-01), Numata
patent: 2002/0015415 (2002-02-01), Sugino et al.
patent: 2006/0153108 (2006-07-01), Nakajima

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