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PBXpress is a voice over IP (VoIP) replacement of traditional PBX in the era of the Internet. All of your phones are connected and provisioned via an IP network, your phone calls are always recorded and connected at a fraction of the usual cost.

Best_phone_2006 is a free downloadable soft phone which enables you to make calls from pc to pc, pc to mobile and pc to landline. Best_phone_2006 offers you a Best_phone_2006 number to make free pc to pc calls and receive unlimited free incoming calls from any phone.

ABTO SIP SDK provides a solution to quickly build VoIP softphone that can dial and receive calls on your computer or add VoIP features into your software or web website.

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.

VaxVoIP SIP SDK provides tools and components to quickly add SIP (Session Initiation Protocol) based IP-Telephony make and receive phone calls feature in your web pages and software applications. You can easily develope net-to-phone apps & web pages.

ZOIPER 2.0 Free Edition is a user-friendly IAX and SIP softphone compatible with the Asterisk platform or any other IAX or SIP capable system. ZOIPER Free . Find out the many advantages of this FREE product from Attractel!

SIP SDK - A powerful and highly versatile VoIP SDK. Our SIP SDK provides a powerful and highly versatile solution to add quickly SIP (Session Initiation Protocol) based dial and receive phone calls features in your software applications.

SIP DLL - A powerful and highly versatile VoIP SDK. Our SIP DLL provides a powerful and highly versatile solution to add quickly SIP (Session Initiation Protocol) based dial and receive phone calls features in your software applications.

VoIP SIP SDK - A powerful and highly versatile VoIP SDK. Our SIP SDK provides a powerful and highly versatile solution to add quickly SIP (Session Initiation Protocol) based dial and receive phone calls features in your software applications.