Sip Softphone

DialTrix's Free VoIP Softphone allows you to make very cheap domestic or international PC-to-Phone calls. With the VoIP technology on our side, and following simple steps to start calling, our softphone for windows can be a good solutions for residential and business communications' needs.

Blink is elegant, simple to use and feature-full You can use it with any SIP provider or its own fully-featured SIP service. Blink is a fully featured and easy to use SIP client. Blink offers Rich Multimedia Communications based on SIP protocol using Future Proof Addressing in the form of...

A simple SIP and RTP NAT friendly proxy for SIP based VoIP


Platforms: Windows, Mac, BSD, Linux

YateClient is a free Voip Client (SIP / IAX / GVoice) and Instant Messenger (Facebook / GTalk / Jabber), with it you're permanently connected on multiple chat and telephony accounts. YateClient supports: • SIP / IAX / Jingle calls** and


Platforms: Mac

Phoner is a free softphone for ISDN and VoIP telephony. An answering machine and Text-To-Speech support complete the large package.


Platforms: Windows

KPhone is a SIP UA for Linux, supporting a multitude of features. Originally developed by Billy Biggs, it was developed at Wirlab until 2005. It is now developed by a team of volunteers in this project.


Platforms: *nix

Place these scripts in “~/Library/Scripts/”, select some text on the current page displayed by Safari, then select the appropriate script from the Script Menu to create a new mail message with the selected text in any of the supported mail applications (Mail.app, Microsoft Entourage, AOL,...


Platforms: Mac, Safari

Full featured VOIP softphone based on the open standard SIP protocol. With MizuPhone you can connect to any SIP (proxy and/or registrar) server on the public internet or on your local area network. MizuPhone tries to combine the SIP compatibility with P2P inteligence and an intuitive GUI. It is...


Platforms: Windows

Web management interface for SIP Routing engine (OpenSER, Kamailio, SER, SIP-Router) - handle subscriber profiles, access control lists, accounting, least cost routing and load balancing, monitoring charts, xmlrpc communication with SIP server


Platforms: Windows, Mac, Linux

A software SIP (Voice over IP) Framework, including a phone, written in Python


Platforms: Windows, Mac, BSD, Linux

A Sip live audio feeding agent. The agent captures audio from sound card and sends live audio stream(uLaw) to caller(sip phone) using RTP. It is based on Peers 0.3(http://peers.sourceforge.net/). Can be used in IP telephony to broadcast live audio.


Platforms: Windows, Mac, Linux

SEMS is a GPLv2+ media and application server for SIP based VoIP services. Basic applications like announcement, pre-call announcement, RBT, conference, voicemail, mailbox etc. and lots of example applications available.


Platforms: Mac, BSD, Linux

Kamailio (former OpenSER) is an Open Source SIP Server released under GPL, able to handle thousands of call setups per second. Among features: asynchronous TCP, UDP and SCTP, secure communication via TLS for VoIP (voice, video), SIMPLE instant messaging and presence, ENUM, least cost routing,...


Platforms: *nix

This project contains a SIP stack and server applications built on top of the stack, examples of which are: Stateless Proxy, Registrar,NAT Keepalives,MWI Notifier server. The server applications have been designed to work in association with Asterisk.


Platforms: Windows, Mac, Linux

miTester for SIP is an automated SIP testing tool designed and developed to take care of the complex pre-deployment testing of SIP applications easily. This SIP testing tool can be used to simulate SIP call-flows & automate functional, regression tests.


Platforms: Mac

nSIP is an RFC 3261 compliant implementation of SIP (Session Initiation Protocol) for .NET, written in C#. nSDP is an RFC 4566 compliant SDP parser also in C#, and can be used to make payloads to nSIP messages or to parse any SDP message.


Platforms: Windows, Mac, Linux

'The Genie' is a Java based SIP User Agent that can talk to any other SIP User Agent via SIP Proxy or Asterisk. Also Planned: 1-click sign-in to Yahoo or any other site by storing hashes of user/passwd pairs in a 'Wallet' and they can be accessed onl


Platforms: Windows, Mac, Linux

Telify is a Firefox extension that recognizes phone numbers on web pages and converts them to clickable links. Additionally, any text can be selected and handled as a phone number (including vanity number conversion) by selecting the corresponding context menu item. The country code can be...


Platforms: *nix

SaRP is a SIP and RTP proxy designed specifically to handle the problems inherit in NAT and SIP. The current implementation is written in Perl but a cross-platform C++ version is being worked on. Sourceforge project page


Platforms: *nix

SIP Witch is an official package of the GNU Project as of August 10th 2007. GNU SIP Witch is also part of GNU Telephony & the GNU Telecom subsystem. GNU SIP Witch is a call and registration server for the SIP protocol. As a call server it services call registration for SIP devices and...


Platforms: Mac