Patent ID: 8098653
Filing Date: 2012-01-17
Classification: H04L,H04N

Abstract:
1. A system for delivering in real-time a fax call from a gateway to an Internet Protocol (IP) network, wherein the fax call comprises: (a) analog signals of fax negotiation and control belonging to a first type of fax signals, and (b) half-duplex analog signals modulated according to a modulation scheme selected by fax terminals for fax image transfer belonging to a second type of fax signals; wherein the system comprises: wherein the system is to determine, on per-signal basis, how to process sampled input of fax signals; wherein the system is to select, on per-fax-call basis, whether to transfer fax signals belonging to said second type after being demodulated or after being PCM encoded; wherein, if PCM encoding is used in the delivering of a fax signal, then the system is to initiate the PCM encoding; wherein the system is to switch, within a fax relay session, from or to utilizing a PCM-encoded signal stream, to or from, respectively, utilizing a demodulated data stream.