How to implement real-time fax?
TOP There are two popular methods for implementing real-time fax over IP networks – FxPAD and FaxRelay. FaxPAD is a method that involves the manipulation of the T.30 fax transport protocol to keep the sending and receiving fax machine operating even when IP network delays are long. In case of long delay, the local FaxPAD ITG employs different schemes to “spoof” the fax machine, thwarting the “time-out” and keeping it on-line until the next message is received.With FaxRelay, a fax is detected by the FaxRelay ITG and the signals are demodulated into their original digital format. The demodulated fax is then relayed to the receiving ITG where the signal is re-modulated and sent to the receiving fax machine. The receiving fax machine accepts the signals and fax normally if the network delay is less than one second. What is H.323 protocol stack? TOP The H.323 protocol stack is an umbrella recommendation from the International Telecommunications Union (ITU) that set the standards for multime
