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	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)

	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)

	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)



	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)

	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)



	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)

	TrueConf Server Free 4.3.7 TrueConf Server Free is free video conferencing server for 6 users with a possibility to make video calls and group conferences in LAN via the Internet. It has a simple integration with IP telephony and SIP/H.323 devices and also API & SDK. software, videoconferencing server, group conferences, webrtc, svc free download (32 Mb)

	Huella Dactilar SDK 1.0.61228.0 Huella Dactilar SDK allows you to integrate fingerprint recognition technology in various types of applications with just four lines of code. fingerprint sdk, biometric sdk, fingerprint integration free download (20.26 Mb)

	Billion PBX 2.0 Billion PBX - new generation phone system working in IP-networks using SIP protocol. Billion PBX provides not only voice calls but also a whole range of additional features like call forwarding, voicemail, callback and many others. phone system, PBX, voip, sip, ip-telephony free download trial (12.67 Mb)