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	VoIP SIP SDK for Android 4 ABTO Software's VoIP SIP SDK allows quick VoIP softphone app development. SIP softphone provides voice, video and IM communication, supports VPN and SRTP connection, and is compatible with most SIP servers. VoIP SIP SDK for Android, SIP SDK for Android, VoIP SDK for Android, VoIP ZRTP client, SIP ZRTP client free download trial (106 Kb)

	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)

	VaxVoIP SIP Recording SDK 8.0.4.0 VaxVoIP Recording SDK offers a new, flexible approach that integrates multiple advanced features, empowering users to create their own VoIP Call Recording Server. VoIP, SIP REC, call recoder, SIP REC protocol, sip sdk free download trial (23.68 Mb)



	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)