Central office exchange service

Central office exchange service

(communications)
(Centrex) A PBX service providing switching at the central office instead of at the company premises. Typically, the telephone company owns and manages all the communications equipment necessary to implement the PBX and then sells various services to the company.
Mentioned in ?
References in periodicals archive ?
IP Central Office Exchange Service consists of IP telephony solutions where Centrex service is offered to customers who transmit voice signals to the network as packetized streams usually across a broadband access connection.
Wireless business users will also be able to access central office exchange services (CENTREX) through the GSM network, giving them remote PBX-like features.

Full browser ?