System for and method of extending a PBX phone port to a...

System for and method of hairpinning a remote PBX or KTS or...

System for connecting an incoming call to a selected one of a nu

System for connecting an incoming call to a selected one of a nu

System for connecting an incoming call to a selected one of a nu

System for connecting calls on physically distinct servers on an

System for connecting calls on physically distinct servers...

System for connecting public network subscriber and private netw

System for converting a routing address within a telecommunicati

System for elminating glare in virtual private line circuits

System for service control point routing

Systems and method for providing network element management func

Systems and methods using secondary signal backchanneling