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Telepati SIP Phone Freeware

Free - Research Lab Inc
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 with the username and password from your providers, you can connect and start speaking with anyone on the internet.
voip, phone, sip phone, soft phone, softphone, asterisk, sipphone, voip phone, instant messaging, voice, telephony
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Minipax

Free - Vidosystem
Minipax is newest generation of Vidosystem Softphone. Our engineer had successfully recode sip engine to produce more robust, small application, better nat traversal sip softphone.
Minipax NOW support SIP tunneling. SIP tunneling works where clients firewall blocked or on a country where voip is blocked. SIP tunneling also give more security to voip
Minipax support hold function, mute function, mic/spk volume control, transfer call, for
ip pbx, cisco, voip provider, unified teamwork, collanos software, jabber, yahoo, video, voice services, collanos phone, unified collaboration
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Collanos Phone Linux

Free - Collanos Software Inc.
Collanos Phone is a software-only Voice over Internet Protocol (VoIP) phone and a multi-protocol instant messenger combined in one application. The main features include placing audio & video calls and sending instant messages to existing Jabber, MSN, ICQ, AOL, and Yahoo! networks. Following Collanos’ multi-platform strategy, the product is available on Windows, Mac OSX, and Linux. All basic features of Collanos Phone are available at no cost.
rtc api, free softphone, communication, voip phone system, h323, telephone, windows, sip softphone, mobile, vonage, internet telephony
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Collanos Phone Mac OS X

Free - Collanos Software Inc.
Collanos Phone is a software-only Voice over Internet Protocol (VoIP) phone and a multi-protocol instant messenger combined in one application. The main features include placing audio & video calls and sending instant messages to existing Jabber, MSN, ICQ, AOL, and Yahoo! networks. Following Collanos’ multi-platform strategy, the product is available on Windows, Mac OSX, and Linux. All basic features of Collanos Phone are available at no cost.
sip stack, rfc standards voip, openh323, web phone, internet phone, voice mail, softphone sip, free phone calls, softphone software, portable voip, sip software
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3CX Phone System for Windows Free

Free - 3CX Ltd
3CX Phone System for Windows Free edition is an IP PBX that completely replaces a proprietary PBX, supports standard SIP soft/hard phones, lowers call costs via VOIP service providers whilst still supporting traditional PSTN phone lines. Developed for Windows - Easy to install and configure! Scaleable to thousands of extensions & eliminates the phone wiring network. Download FREE edition with no limitations or time outs.
voip softphone, internet phone calls, free voip phone, voip gateway, attractel, calling, asteriskguru, iax2, idefisk, zoiper, linux
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Collanos Phone Windows

Free - Collanos Software Inc.
Collanos Phone is a software-only Voice over Internet Protocol (VoIP) phone and a multi-protocol instant messenger combined in one application. The main features include placing audio & video calls and sending instant messages to existing Jabber, MSN, ICQ, AOL, and Yahoo! networks. Following Collanos’ multi-platform strategy, the product is available on Windows, Mac OSX, and Linux. All basic features of Collanos Phone are available at no cost.
t 38, srtp, iax and sip, video conference, video message, service, iconnethere, addpack, sipgate, free ip call, ip com
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