Tag Archives: sip software

Internet phone to make calls using your PC Express Talk is software that works like a telephone to let you make calls from your PC. With Express Talk you can call anyone on the internet who has installed Express Talk (or any other SIP voip softphone). Calls are free.

Highly customizable VoIP SDK to accelerate development of SIP applications Our VoIP SIP SDK provides a powerful and highly customizable solution to quickly add SIP based dial and receive phone calls features in your software applications. It accelerates the development of SIP VOIP applications.