Sip Lib
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Telepati SIP Phone Freeware
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
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ZOIPER Free IAX and SIP softphone
ZOIPER 2.0 Free IAX and SIP is a user-friendly softphone, compatible with Asterisk or any other IAX or SIP capable system. High-quality VoIP calling experience with features like: IAX + SIP protocols, SIP over TCP/TLS/UDP(STUN support), Echo cancellation,
Uplink Skype to Sip Adapter
Uplink connects SIP protocol VoIP calls to the proprietary Skype phone network. It works in both directions. Connects both incoming and outgoing calls to the Skype network. Can be used to make SkypeOut calls from a SIP device or SIP PBx. Can receive
VoIP SIP SDK
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 compliant soft phone with a fully-customizable user
SIP H.323 IAX Audio Conference Server (MCU)
H.323 SIP IAX Audio Conference Server (MCU), allows mixed conferences between H.323, SIP and IAX users. Supports various audio codecs, web interface, runs on Linux and Windows. Fully functional demo version available.
VaxTele SIP Server SDK
VaxTele SIP Server SDK (Software Development Kit), allows software vendors and service providers to develop their own rich featured and reliable SIP (Session Initiation Protocol) based VoIP servers, IP-PBX, SIP PBX, SIP gateway. It is really easy to
VoIP SIP Client SDK
VoIP SIP Client 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
SIP Workbench v.1.0.0.3970
SIP Workbench is a graphical SIP, RTP, STUN, and TURN protocol analyzer and viewer designed to help illustrate and correlate VoIP and IM network interactions.
SIP PBX v2 v.2 69
A Free Windows SIP PBX, with rich and powerful features like ACD(Automatic Call Distribution), Ring Group, Call Parking, Auto Attendant, Pickup Group, Conference, Auto-Dialer, Database CDR report, Database PBX Status Report, and much more.
VoIP SIP SDK for .NET and Win32 COM v.1.0
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
X-Lite SIP VoIP Softphone v.4.0
CounterPath's 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 (CounterPath's carrier grade telephony client),