Topex multiACCESS


A UMTS gateway with bi-directional connection between one E1 trunk and up to 30 UMTS channels. Using the VoIP card this equipment act as VoIP to UMTS gateway. It features 30 VoIP channels to 30 UMTS channels. This equipment is a perfect solution for companies with considerable international traffic. Instead of 2 sets of equipment (VoIP and UMTS gateways), you only need one unit, which includes the all the combined features.

Note: This product is upgradeable to a fully functional multiSWITCH softswitch

Topex multiAccess is a member of Topex Media Gateways family of medium size capacity. Its main functionality is to interconnect VoIP networks with mobile networks.

  • Extra revenue generator
  • VoIP to any mobile network gateway (GSM, UMTS,CDMA)
  • Fixed mobile convergence
  • Gateway between Mobile Networks and VoIP
  • Small and Medium capacity Next Generation Networks
  • Enterprise hybrid telephony solution
  • IP telephony for Triple Play Solutions (voice, video and data)
  • VoIP Card
    • H323 and SIP - supported
    • up to 60 voice channels
  • 2 E1 trunks
  • 60 simultaneous calls
  • ISDN, SS7, R2, R1.5 - signaling protocols supported
  • 30 GSM/UMTS/CDMA channels
  • 120 SIM cards


  • Least Cost Routing
  • Multiple voice codecs
  • Buy Now

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