Sip Phone Software

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.

SIP@Home is a SIP Proxy server for Windows OS. It allows make calls between SIP devices, such as mobile phone, PC, PSTN. SIP@Home works as traditional SIP proxy server or as full proxy, when all traffic includes voice data goes through SIP@Home.

VaxTele SIP Server SDK allows software vendors and service providers to develop their own SIP based VoIP Server, IP-PBX, SIP PBX, SIP gateway and IP-Telephony services.

Smart SIP Phone is a platform for Smart Dialer. It has a a user-friendly interface and it works as a mobile phone, but in a virtual mode.

SIP Softphone ActiveX - A powerful and highly versatile VoIP SDK. Our SIP Softphone ActiveX provides a powerful and highly versatile solution to add quickly SIP based dial and receive phone calls features in your software applications.

Telepati SIP Phone Freeware allows you to make PC-PC phone-phone calls over the Internet. Developed using Research Labs VOIP SIP Phone SDK, this free soft phone brings SIP protocol support for ActiveX. Tested and works with 75% of the providers.

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.

Free VOIP / SIP phone. Use your PC as a phone. Works with any SIP/ VOIP provider/ phone service. Easy to use interface to transfer, forward calls or set-up conference calls. Free download from http://www.3cx.com

Free VOIP / SIP phone (softphone) for Windows. Use your PC as a phone. Works with popular VOIP providers and SIP PBX's (including 3CX Phone System). The interface is easy to use and similar to that of popular Smartphones.

Mizu softphone is a professional SIP client application based on the latest standards, compatibile with any Internet Telephone Service Provider (ITSP) with lots of built-in features like call recording, conference mixing and HD Video

Supports a wide range of SIP providers. Allows you to select appropriate SIP account based on the destination of a call.

It 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 and websites.

SIP Inspector is a tool written in JAVA to simulate different SIP messages and scenarios. You can create your own SIP signaling scenarios, customize SIP messages and monitor incoming and outgoing messages.

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.

Freeware Windows SIP softphone for making voice calls using your PC.

Evolve your communications with 3CX Phone System for Windows - an IP Phone System that completely replaces your proprietary PBX, supports standard SIP soft/hard phones, VOIP services and traditional PSTN phone lines.

Billion PBX - new generation phone system working in IP-networks using SIP protocol. Billion PBX provides not only voice calls but also a whole range of additional features like call forwarding, voicemail, callback and many others.

Combine the power of the Microsoft®, the power of Google®, and the power of your Aastra SIP phone to accelerate and simplify all your phone communications with Aastra Connector.

SIP Phone DLL for .NET and ActiveX - A powerful and highly versatile VoIP SDK to accelerate development of SIP applications.

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.