Topex multiSWITCH

Topex multiSwitch is situated in the center of the Topex Next Generation Networks architecture. It is a carrier-grade softswitch solution that provides call-control, multiple services and multiple types of signalling. It features Class 4 and Class 5 telecom services over an IP-based infrastructure.

  • Migration path from TDM to VoIP
  • Very high scalability
  • Cost effective
  • High reliability
  • Multiple applications and services supported
  • Wired / wireless convergence
  • Distributed architecture


  • Carrier-grade IP telephony softswitch for Small/Medium service providers
  • Small and Medium capacity Next Generation Networks
  • Emergency communication center solution
  • IP telephony for Triple Play Solutions(voice, video and data)

Main features:

  • TOPEX multiSWITCH provides call-control intelligence for establishing, maintaining, routing and terminating voice calls
  • SIP-based Softswitch solution
  • The Topex multiSwitch serves as an interface for enhanced service and application platform.
  • It is a carrier class Softswitch, suitable for both small and medium size providers.
  • It is also suitable for enterprises that manage their own communications network.
  • TOPEX multiSWITCH allows rapid deployment, full support for multi service, multi access, multi media and mobility applications.
  • A network based on TOPEX multiSWITCH is positioned for growth.



  • Very high scalability
  • Cost effective
  • Very high reliability
  • Carrier class
  • Pay as you grow

technical data sheet

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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