Patent ID: 9065748
Filing Date: 2015-06-23
Classification: H04L

Abstract:
1. A method of providing Circuit Emulation Service over Packet (CESoP) over a packet switched network, the packet switched network including a first router in TDM communication with a first device and a second router in TDM communication with a second device, the first router and the second router being separated by the packet switched network, the method comprising: determining the one-way latency from the second router to the first router, this latency being termed the inbound latency; determining the one-way latency from the first router to the second router, this latency being termed the outbound latency; comparing the inbound latency and the outbound latency; if the outbound latency is lower than the inbound latency, initiating TDM playout to the first device when a jitter buffer reaches a playout level; and if the inbound latency is lower than the outbound latency, initiating TDM playout to the first device after the jitter buffer reaches the playout level and then a duration equal to the difference between the inbound latency and the outbound latency has elapsed.