centrex Definition

centre, telephony, pstn, landline, pabx, pbx, eyebeam, dial tone, interworking, asynchronous transfer mode, cellular, phone, vocable, dialtone, telecommunication, telco, micromethod, dialler, corrigent, wideband, mediant, collocation, dialling, payphone, tokenless, infiniti, fenestrae, moble, phone service, naas, mesh topology, vitrage, metroscope, mediatrix, prost, usee, connectivity, gradatim, diaphonics, vonage, tariffing, cordia, ixia, ixc, subscriber line, gateways, coreid, sba, incurrent, immix, telemessage, centigram, excedent, provisioning, autonomics, giffgaff, messaging, signate, signon, vinculum, aiti, wireless, isis, unes, multimode, moonblink, contex, fibre optics, direct marketing, synapta, pams, postpaid, sbc, yipes, legerity, manet, rete, lightwave, siris, pago, pactolus, etel, insp, mobile, providers, voix, services, roamer, mux, call forwarding, enterprise, bluecoat, touchtone, prepaid, jennet, systemise, basen, lync, phonoscope, intercommunication,