Sip Softphone

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...

OfficeSIP Messenger provides enterprises with advanced instant communications for free. Compatible with Office Communications Server 2007, OfficeSIP Messenger delivers reliable performance combined with trouble-free deployment and management. Supporting text, voice and video chats, the free...

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. With this phone once you set the gatekeeper proxy with the username and password from your...


Platforms: Palm OS, Windows, Windows CE

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

Mizu VoIP Server is an all in one enterprise grade softswitch solution with support to SIP and H.323. All Class5 features including sophisticated routing, access rules, CDR record generation, billing and accounting and offers full compatibility with your SIP infrastructure. Highlights:...


Platforms: Windows, Windows 8, Windows 7, Windows Server

ZOIPER Free Version 2.0 is a new generation IAX and SIP softphone compatible with the Asterisk platform as any other IAX or SIP capable system. ZOIPER Free Edition features include: IAX/IAX 2 + SIP protocols, STUN support, STUN server per account, Echo cancellation, DTMF tones sending, Support...


Platforms: Windows, Mac, *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

TekSIP is a SIP Registrar-type proxy without status, designed specifically for Windows systems. For each SIP point, TekSIP tells you its corresponding IP address, the port, the date and time.TekSIP is a completely free tool that only needs half a megabyte of space. It works with both Windows XP...


Platforms: Windows

A multi-platform IAX and SIP softphone, compatible with the Asterisk platform and any SIP-capable system in general. It is available in Free and Biz editions. Zoper Free offers the following advanced features: - D?.38 fax receiving support (for SIP) - STUN support - Various codec support...


Platforms: Mac

Zfone uses a new protocol called ZRTP, which is better than the other approaches to secure VoIP, because it achieves security without reliance on a PKI, key certification, trust models, certificate authorities, or key management complexity that bedevils the email encryption world. Zfone also...


Platforms: *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

Adore SIP Softphone comes with an intuitive Graphical User Interface and can be easily customized. It's designed with SIP technology that can be used to make outbound phone calls from PC to any telephone. Since sip softphone uses Microsoft's g723.1 codec, it can be used in all versions...


Platforms: Windows

A Windows free SIP IP PBX software. It is very easy to use and deploy, with powerful features like:ACD, Auto Attendant, Call Park, Ring Group, Conference, Call Pickup Group, Auto Outbound Dialer, Database CDR report, Database PBX Status Report. It supports SIP extensions, SIP accounts, inbound...


Platforms: Windows

Firefly offers users free voice mail, pc to pc calling and instant messaging. Totally free from advertising, spam and the parental worries associated with most other internet communication tools. Firefly offers users free voice mail, pc to pc calling and instant messaging.Totally free...


Platforms: Windows

PhonerLite is a clearly arranged and easy to use application for Windows. PhonerLite enables your PC to use it for internet telephony (VoIP, Voice over IP). Pre-conditions are a full-duplex sound card, a microphone and speakers (alternatively a headset), an internet connection and a registration...


Platforms: Windows

Enable your employees call each other for free with OfficeSIP Server. Multi-office and trans-national corporations pay thousands of dollars for long-distance calls every month even after considerate savings made possible with IP telephony. Voice over IP is great for saving money on...


Platforms: Windows

Xtenn softphone makes call Pc to landline and Mobile phones internationaly at very cheap rates


Platforms: Windows

The Vovida SIP stack is an implementation of the protocol defined in RFC 2543, the Session Initiation Protocol, which can be used to initiate voice connections (phone calls) over IP networks. It offers an object-oriented C++ API as well as sample applications demonstrating its use..


Platforms: *nix

Vphonet lets you make FREE calls over a broadband connection to other Vphonet users all the time. There is no commitments, no credit card needed, and no need to pay for anything unless you decide to upgrade to Plan, or order one of services. Vphonet is a Free Internet Phone. Enables also video...


Platforms: Windows, Windows Vista

Monitoring The Web is a simple, effective and useful web based service that allows to monitor accessibility and functioning of internet resources like Web sites, VoIP and FTP servers. By using diagnostic requests via the protocols HTTP, FTP, PING, and SIP, this utility continuously monitors...


Platforms: Windows, *nix, Windows CE