- Central Telecom supplies Networking products & integrated communications incl: telephony, computing, voice processing & data bases. We are network resellers, also SDX, multimedia & video conferencing. Central Telecom supplies telecoms technology incl. ISDN, PABX, voice and data multiplexers, routers, PC card, terminal adaptors, structured cabling & CTI applications. Site gateway ...www.central-telecom.co.uk