MizuPhone has features never seen in other SIP softphones (like HD video, Remote Desktop, etc). MizuPhone helps to join the largest comunity in the world. Over 10 million existing SIP users. The VOIP client that takes the most of the newest VOIP technologies. With the help of its advanced network handling, it will work behind NAT's where other softphone's will fail. Full compatibility with your SIP infrastructure

Softphone will let you call to any SIP accounts freee and to any PST network numbers by cheap rates

VoIP SIP SDK - A powerful and highly versatile VoIP SDK to accelerate development of SIP applications. Our brand-new 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. It accelerates the development of SIP/ RTP compliant soft phone with a fully-customizable user interface and brand name.

SIP SDK - A powerful and highly versatile VoIP SDK to accelerate development of SIP applications. Our brand-new 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. It accelerates the development of SIP/ RTP compliant soft phone with a fully-customizable user interface and brand name.

Phoner's is the market's leading free SIP based softphone available for download. Based on the advanced architecture of eyeBeam 1.5 (Phoner's carrier grade telephony client), the new Phoner is designed to showcase some of the feature rich capabilities available with our commercial softphone such as superior audio and video quality, zero-touch configuration, IM & Presence, and a comprehensive personal address book.

Ekiga's is the market's leading free SIP based softphone available for download. Based on the advanced architecture of eyeBeam 1.5 (Phoner's carrier grade telephony client), the new Phoner is designed to showcase some of the feature rich capabilities available with our commercial softphone such as superior audio and video quality, zero-touch configuration, IM & Presence, and a comprehensive personal address book.

VoIP Surfer X-Lite 3.0 is the market's leading free SIP based softphone available for download. Based on the advanced architecture of eyeBeam 1.5 (VoiP Surfer's carrier grade telephony client), the new VoIP Surfer is designed to showcase some of the feature rich capabilities available with our commercial softphone such as superior audio and video quality, zero-touch configuration, IM & Presence, and a comprehensive personal address book.

ZOIPER 2.0 Free SIP and IAX is a user-friendly softphone, compatible with Asterisk or any other SIP or IAX capable system. High-quality VoIP experience with features like: SIP + IAX protocols, SIP over TCP / TLS / UDP with STUN support, Echo cancellation, DTMF tones, Multiple audio devices support, Automatic user registration, Call transfer, Hold function, Multilanguage support, Portable storage compatibility, Codecs: GSM, ulaw, alaw, speex, ilbc

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

Buzzfonp2p is the latest voip software or peer to peer application that you can now download for free to call unlimited worldwide! Download this free voip software/application right now and start calling your friends, loved ones, business associates in minutes!

VSoft features includes unlimited free VoIP to VoIP call (PC to PC), free video call, low cost VoIP to home/mobile call, send SMS, confrence, SMS to call, VoIP bridge. It is free to download and easy to install.