A complete Voice over IP switching and online billing solution, hosted on our servers and controlled by you.

• Site highlights

  Home page
  Online Calculators
  Products
  Erlang for Excel
  Forum
  VoIP services
  Technical papers
  What is an Erlang?
  Contact us

• VoIP softswitch

  DUAL Softswitch is a complete Voice over IP switching and billing solution.  Flat monthly rate.

  Web control panels; Least Cost Routing; Excel tariff uploads; SIP and H323 support.

  H323 SIP softswitch >>

• VoIP calling

  SIP Trunks with routing designed specifically for corporate customers.  Supports IP-PBXs such as Asterisk.

  Erlang VoIP >>

  ---

  VoIP services for call shops, businesses and home users.   Powerful reseller control panel.

  Choose from three tariffs, depending on your pricing / quality priorities.

  DUAL Talk >>

  ---

  Our lowest rates for wholesale carriers with their own VoIP switch.

  44Mobile >>

  ---

  Our new service designed specifically for Call Shop SIP termination.

  Call shop VoIP >>

  ---

  Make cheaper calls from your mobile phone using SIP and fring.

  fring-a-ling >>

  ---

  UK direct route with CLI.

  44Direct >>

Comprehensive billing is presented to your customers using online control panels, and a further control panels offers a flexible call shop billing system.

You can concentrate on building your VoIP business, while DUAL Softswitch automatically optimises your switching and billing facilities by managing your Least Cost Routing; implementing tariffs and even generating Excel rate sheets for your customers.  Your customers will benefit from an online CDR control panel and a powerful Call Shop Billing System.