The Call Center Directory offers your business high visibility on our web site.  There is a link to each page at the top of every Call Center Forum thread, and the threads are displayed hundreds of times each day.

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

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 >>

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 >>