
COP series products are based on Circuit Emulation over Packets technology. The idea is to "tunnel" a TDM circuit (e.g. E1/T1, or RS530, V.35 etc.) through a packet-switched network. The TDM equipment at either end is unaware that they are connected by anything other than a TDM network. The packet-switched network (IP network) is being used to emulate the behaviour of a TDM circuit