Ip Phone

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.

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Express Talk VoIP Softphone
Free - NCH Software

Express Talk is software that works like a telephone to let you make calls from your PC. With Express Talk you can call anyone on the internet who has installed Express Talk (or any other SIP voip softphone). Calls are free. You can also call ordinary telephone numbers anywhere in the world if you sign up to a gateway service. It uses the SIP protocol and is compatible with most major VoIP SIP service providers.

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PC-Telephone
$35.00 - SELECTRA LTD

Make FREE pc-to-pc, pc-pc and cheap pc-to-phone, pc-phone, pc-to-fax, pc-fax, phone-to-pc, phone-pc, fax-to-pc, fax-pc calls over Internet/VoIP or ISDN/PSTN telephone networks. Use your computer as internet telephone, USB phone, USB handset, ISDN telephone, ISDN fax, answer phone, fax software, voicemail, caller ID, CLIP/CLIR, audio conferencing, call answer, call transfer, call forwarding, call waiting, call accounting, call recording, PBX, etc.

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sharpVoice(tm) Client
$29.99 - CyberTalkOnline LLC

sharpVoice is a internet telephony program that enables free PC-to-PC and inexpensive PC-to-Telephone voice conference calls. sharpVoice Version 6.0 offers great sound quality even over slow internet connections and the ability to conduct multi-person conference calls without a conferencing server.

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Embedded VOIP SIP Developers Kit
$799.00 - Research Lab Inc

Embedded Windows CE VOIP Developers Kit is your embedded telephony solution for developing software/hardware to enable device to device phone calls using SIP/H323 phone right at the electronics level. The design is based on Hybrid Combination of RFC SIP Protocol and Windows RTC and is today successfully ported to Windows CE/Pocket PC/Smart Phone.

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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.

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