SYSTEM, APPARATUS AND METHOD FOR COMMUNICATION

摘要

Communication is established between a source telephony device (2) and a destination telephony device (24) over a telecommunications network by providing an interface (14) to couple a private branch telephone exchange (4), and the telecommunications network. The private branch telephone exchange (4) services a plurality of telephony devices (2) via branch telephone lines (5). The telecommunications network provides at least two telephone lines (1) to the private branch telephone exchange (4). An available telecommunications channel is accessed on one of the telephone lines (1), That telephone line (1) and a branch telephone line (5) of the private branch telephone exchange (4) are bridged by the interface (14). Communication is routed between the source telephony device (2) and the destination telephony device (24).