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	Video VoIP SIP SDK 4.5 Video VoIP SIP SDK is a solution to quickly build VoIP softphone that can dial and receive audio and video calls on your computer or add VoIP features into your software or web website. Video VoIP, Video SIP, SIP SDK, VoIP SDK, VoIP SIP SDK free download trial (106 Kb)

	PC-Telephone Plus 7.0 Make FREE pc-to-pc, cheap pc-to-phone, pc-to-fax, phone-to-pc, fax-to-pc, SIP-phone calls over Internet or ISDN/PSTN telephone networks. Use your computer as internet telephone, USB phone, SIP telephone, ISDN phone, FAX, Voicemail. pc-telephone, pc-phone, pc-to-phone, pc-pc, pc-to-pc free download trial (1.43 Mb)

	SIP VOIP SDK 3.6 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 VOIP applications. voip sip sdk, SIP ActiveX, Voice internet phone sdk, Internet phone sdk, VoIP free download trial (7.45 Mb)



	PC-Telephone 6.2 Make FREE pc-to-pc and cheap pc-to-phone, pc-to-fax, phone-to-pc, fax-to-pc, sip-phone, sip-to-phone calls over Internet or ISDN/PSTN telephone networks. Use your computer as internet telephone, USB phone, ISDN phone, fax, voicemail, callerID. pc-telephone, pc-phone, pc-to-phone, pc-pc, pc-to-pc free download trial (1.32 Mb) :: order online ($35.00)

	Billion Softswitch 3.0 Billion Softswitch VoIP SIP/H323 proxy server for Windows, Linux, FreeBSD. Billion Softswitch is a software system for intellectual proxy of signaling and media streams in the VoIP-networks based on SIP and H.323 protocols. softswitch, ip pbx, IP-telephony, VoIP, H323 free download trial (8.47 Mb)

	VoIP SIP SDK 3.0.11 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 VOIP applications. voip sip sdk, SIP ActiveX, Voice internet phone sdk, Internet phone sdk, VoIP free download trial (106 Kb)



	Enigma Softphone 0.8.8 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 Enigma, softphone, free softphone, free calls, SIP free download (20.8 Mb)

	VaxVoIP SIP Desktop SDK 3.8 VaxVoIP SIP Desktop SDK provides tools and components to quickly add SIP (Session Initiation Protocol) based webphone, softphone and IVR systems for Desktop OS and Mobile-Phones. sip sdk, webphone, develop softphone, softphone development, sip activex free download trial (32 Mb)

	VoIP H.323 SDK for .NET and ActiveX 1.0 VoIP H.323 SDK A powerful and highly versatile VoIP SDK to accelerate development of H.323 applications and websites. Lost no time and start a massive jump in development and a couple of new customers. Enjoy! h323, h.323, H323 SDK, SIP RTP, RTP free download trial (7.65 Mb)

	ABTO SIP SDK 3.0.12 ABTO SIP SDK provides a solution to quickly build VoIP softphone that can dial and receive calls on your computer or add VoIP features into your software or web website. voip sip sdk, SIP ActiveX, Voice internet phone sdk, Internet phone sdk, VoIP free download trial (106 Kb)