Free Erlang traffic calculators

The world's first online Erlang traffic calculators

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We have been providing VoIP termination services (H.323 and SIP) under a number of different brands since 2003.

  • VoIP calling

    Premium quality termination for wholesale carriers with their own VoIP switch.

    44Direct >>

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

    44Mobile >>

    Our unique online callshop billing system.

    Bill My Calls >>

Recommended software


44Mobile is an aggressively priced H.323 and SIP termination service aimed squarely at large volume customers with their own VoIP switching and billing platforms.  Customers gain access to our TDM interconnections with tier-1 carriers in London, enabling them to resell services with high availability and quality.

Bill My Calls

Bill My Calls is an online callshop biller system that offers callshops and teleboutiques a prepay and postpay billing system for charging customers in their own currency and at their own rates.  Bill My Calls works with almost all VoIP carriers, which means that you do not need to change your callshop VoIP provider to use the service.


Premium quality A-Z VoIP termination for wholesale carriers.  This service offers the best possible quality and the lowest PDD for UK calls.  Access is available to our UK direct route using SIP or H323.
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Last modified: 25 January 2019

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