Sip Forwarder

Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification (see the feature table).It can be used as a building block for SIP client software for uses such as VoIP, IM, and many other real-time and person-to-person communication services. Sofia-SIP is based... Platforms: Windows, Mac, *nix, C/C++, BSD Solaris

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

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

Distributed SIP Analyzer is a SIP protocol analyzer for Unix.It allows you to examine SIP from different local area network.You can interactively browse the capture data, viewing callflow sequence diagram and detail information for each SIP Session. Platforms: *nix

Email Forwarder will selectively forward your Microsoft Outlook emails to one or more remote email addresses, or to your cell phone. It requires no special configuration or setup. You just install it, and tell it where you want your emails forwarded to. It even works through corporate... Platforms: Windows, Windows 8, Windows 7, Windows Server

Free VOIP / SIP phone. Use your PC as a phone. Works with any SIP / VOIP provider/ phone service. Use instead of the soft phone provided by your VOIP provider which locks you into their VOIP phone service. Easy to use interface to transfer, forward calls or set-up conference calls. Call log, call... Platforms: Windows

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

Sponsor popup windows driving you nuts while you are browsing the web? SIP takes them OUT with extreme prejudice! Very low CPU useage, you won't even know its running. Dumps its kill list out to a text file so you can distribute it to friends. Comes with a working initial list as a starting... Platforms: Windows

Doddle is a free online SIP WebPhone through which you can make phone calls from within a webpage. It works with couple of VoIP providers or you can even fill it with your own SIP settings details. There is no desktop software to be downloaded at all. It just uses Java plugin( JVM ) which... Platforms: Windows, *nix

Doddle is a free online SIP WebPhone through which you can make phone calls from within a webpage.It works with couple of VoIP providers or you can even fill it with your own SIP settings details. There is no desktop software to be downloaded at all. It just uses Java plugin( JVM ) which... Platforms: Windows, *nix

Jiplet is short for Java SIP Servlet. Jiplet Container project is an open-source container for server-side SIP applications. An application developer can create a SIP application written in Java using the Jiplet API and deploy the application in the container. The container provides a number of... Platforms: *nix

nagios-check_sip plugin will test a SIP server/device for availability and response time.. Platforms: *nix

Simple UDP proxy/pipe is an advanced UDP proxy/datapipe/packets forwarder and modifier with multiple functions. Multiple clients allowed (you can connect many clients you want to this proxy), creation of ACP files (tcpdump capture files, just like a sniffer), packets forwarding (chat style,... Platforms: *nix

SSIP-GST Gaim plugin is an open-source SIP/SIMPLE plugin library, compliant with the IETF RFC3261 specification. SSIP-GST plugin serves as an example GUI client for the Sofia-SIP library. It can be used with Gaim as a SIP client software for uses such as VoIP, IM and presence. Media support is... Platforms: *nix

OpenSER is a collaborative project of its users, to develop a scalable and robust SIP server. Anyone can contribute to one of next items: - code development - OpenSER core, modules and adjacent applications - documentation- writing or enriching documentation - miscellaneous - different... Platforms: *nix

Jumpgate is a TCP connection forwarder that provides many enhancements andimprovements over the existing programs that do the same thing. Onlytested on OpenBSD, but should run without problems on any Unix-likesystem. Platforms: *nix

Enigma is a free Session Initiation Protocol (SIP) softphone available for your download. It can used to make Internet calls, establish conference and send instant messages to your buddies under the same SIP network. Choose your platform see features So whether your just having a simple voice... Platforms: Windows

MizuPhone is a SIP Client for Windows which lets you make VoIP/SIP calls to users anywhere in the world using any VoIP service provider, SIP server or your own PBX. Features: -Easy to use, zero-touch configuration -Multiple profiles, multiple lines -Superior voice quality with audio... Platforms: Windows, Windows 8, Windows 7, Windows Server

MizuPhone for iOS is a customizable VoIP softphone for iPhone and iPad which can be used with any softswitch or PBX using the industry standard SIP and RTP protocols. All common VoIP features are included making this software a suitable solution for all VoIP business needs. The customized version... Platforms: *nix, iPhone,iPod,iTouch,Handheld/Mobile Other

With the MizuDroid free softphone for Android you can make VoIP calls to users anywhere in the world using any VoIP service provider, SIP softswitch or your own PBX. Features include clear voice quality using industry standard codec such as G.729 and wideband codec, auto configuration, VoIP... Platforms: *nix, Android, Handheld, Other,Java,RIM