VoIP media gateways perform the conversion between TDM voice to Voice over Internet Protocol (VoIP), ideal for cutting your telephonic bills. The fixed-to-mobile calls are converted into mobile-to-mobile calls with substantially reduced cost. Choose from:

Medium to large media gateways come in a variety of configurations. Rack mountable equipment (3U)

Topex Qutex is a member of Topex Media Gateways family of medium size capacity.

  • The only product in the market that can be interconnect to a very large number of mobile networks (GSM, UMTS, CDMA2000, PTT)
  • Extra revenue generator
  • Gateway upgradeable to softswitch
  • SS7 interconnection solution


  • Fixed mobile convergence
  • Gateway between legacy PSTN infrastructure and VoIP
  • Gateway between Mobile Networks and VoIP
  • Gateway between Radio PTT and VoIP
  • Interconnection gateway between IP telephony and SS7 networks
  • Small capacity softswitch
  • Emergency communication center solution
  • Small and Medium capacity Next Generation Networks
  • Enterprise hybrid telephony solution
  • Signaling convertor for large spectrum of protocols
  • IP telephony for Triple Play Solutions (voice, data and video)


Main Features:

    Depending on your communication needs this equipment can be:

    • VoIP to mobile networks gateway
    • E1 to mobile networks gateway
    • VoIP to E1 gateway
    • Protocol signaling convertor
    • IP PBX when upgraded to softswitch(with a possibility to manage 300 subscribers)
    • SMS gateway
    • Capacity
    • 1 VoIP Card
    • + H323 and SIP - supported
    • + 8-16-30-60 voice channels
    • 2 PRI trunks
    • Up to 10 GSM channels
    • Up to 10 UMTS channels
    • Up to 10 CDMA2000 channels
    • Up to 20 BRI lines
    • Up to 40 FXS/ FXO connections
    • ISDN, SS7, R2, R1.5 - signaling protocols supported


    • Least Cost Routing
    • Multiple voice codecs
    • Wide-range of mobile neworks: GSM, UMTS, CDMA2000, PTT


C21 Communications provides solutions and products designed to reduce the cost of telephony for SoHo and SME businesses, right through to global enterprises.

C21 Communications Ltd. Harwell International Business Centre, 173 Curie Avenue, Harwell, Didcot, Oxfordshire, OX11 0QG.


Contact Number: +44 1235 838592