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	VoIP SIP SDK with DLL, ActiveX and .NET 2.5.2 VoIP SIP SDK - A powerful and highly versatile VoIP SDK. Our 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. sip sdk, SIP RTP, RTP, SIP activeX, SIP Lib free download trial (5.13 Mb)

	VaxVoIP WebPhone SDK 6.0.4.2 VaxVoIP WebPhone SDK offers tools and components for swiftly integrating SIP (Session Initiation Protocol) and WebRTC based VoIP call dialing, receiving, and audio-video conferencing features into your webpages sip sdk, webphone, WebRTC, WebRTC Server, develop webphone free download trial (36.67 Mb)

	Doddle WebPhone 1.2 Doddle is a free online SIP webphone through which you can make phone calls from webpage.CODEC GSM, G.711 , click2call feature, conference.There is no desktop software to be downloaded at all. voip, webphone, telephone, sip, click2call free download (564 Kb)



	SIP SDK 1.5 SIP SDK - A powerful and highly versatile VoIP SDK. Our 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. sip sdk, SIP RTP, RTP, SIP activeX, SIP Lib free download trial (21.31 Mb)

	VoIP SIP Client SDK 1.3 VoIP SIP Client SDK - A powerful and highly versatile VoIP SDK. Our 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. sip sdk, SIP RTP, RTP, SIP activeX, SIP Lib free download trial (9.18 Mb)

	SIP H.323 IAX Audio Conference Server (MCU) 1.0 H.323 SIP IAX Audio Conference Server (MCU), allows mixed conferences between H.323, SIP and IAX users. Supports various audio codecs, web interface. MCU, H.323, h323, SIP, IAX free download trial (1.62 Mb)



	Zoiper Communicator Softphone 1.10 ZOIPER Communicator is a very intuitive SIP softphone, with presence, chat, video and fax. Very stable, small footprint, skinnable, and with encryption support. iax, sip, iax2, tcp, tls free download (2.8 Mb)

	MAX SIP ActiveX 1.1 Powerful and highly versatile VoIP SIP SDK to accelerate development of any type of VoIP-enabled applications, like e.g. a SIP soft phone, teaching tool, live support or meeting tool. component, library, dll, activex, ocx free download trial (4.01 Mb)

	BizPBX 1.1.0.1 BizPBX is the world first communication system that realizes the free connection among three different networks Skype, PSTN and SIP. The 3rd Generation PBX System, Skype exchange, Skype PBX, Skype gateway, PSTN to Skype free download (30.62 Mb)

	OfficeSIP Alerter 1.0 OfficeSIP Alerter is a simple, easy-to-use and free instant sip messenger. It was not designed for prolonged chat, it is handy when you need to send single message. It is good replacement for old-fashioned Alerter Service. office, sip, messenger, alerter, freeware free download (661 Kb)