Patent ID: 7395309
Filing Date: 2008-07-01
Classification: H04L,H04M

Abstract:
1. A method implemented in an Internet node for reducing Internet bandwidth used for VoIP modem relay, a first modem coupled to the Internet node and a second modem coupled to an other Internet node, the method comprising: upon detecting no data packets received at the Internet node from the other Internet node over an IP network to transmit over a switched telephone network to the first modem, regenerating idle data at the Internet node to transmit to the first modem, the regenerated idle data used to maintain a connection between the first modem and the second modem; and upon detecting idle data received from the first modem over a switched telephone network at the Internet node to forward to the other Internet node over the IP network in a payload of a data packet, suspending transmission of data packets to the other Internet node for transmission to the second modem; and resuming transmission of data packets to the other Internet node for transmission to the second modem, upon receiving data from the first modem that is not idle data.