Adore Softphone delivers SIP-based communications and services for PC-to-Phone and PC-to-PC services surrendering the world at your desktop. The Softphone allows a person to communicate over Internet with any desktops, notebooks, PDAs, stand-alone IP-phones and even with any conventional landline and mobile phones. It supports SIP industry standards and is fully inter-operable with most major Internet Telephone Service Provider and VOIP software

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Express Talk is software that works like a telephone to let you make calls on your Pocket 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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Express Talk is software that works like a telephone to let you make calls on your Mac OS X. 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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ZOIPER 2.0 Free SIP and IAX is a user-friendly softphone, compatible with Asterisk or any other SIP or IAX capable system. High-quality VoIP experience with features like: SIP + IAX protocols, T.38 fax support, STUN support, Echo cancellation, DTMF tones, Adaptive jitter buffer, Call transfer, Hold function, Multilanguage support, Portable storage compatibility, Codecs: GSM, ulaw, alaw, speex, ilbc.

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An easy to use Internet phone for Mac OS X using VoIP to provide crystal clear voice quality in an attractively sleek interface. The quick configuration will allow you to get talking to other iSoftphone users in seconds. Simply dial the number of the person you wish to talk with or select them from the Phonebook to dial their number. Create private telephone networks by using the option to add multiple SIP providers.

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OfficeSIP Messenger provides enterprises with advanced instant communications for free. Compatible with Office Communications Server and Office Communicator, OfficeSIP Messenger delivers reliable performance combined with trouble-free deployment and management. Supporting text, voice and video chats, the free softphone implements ICE, STUN, and TURN protocols to easily traverse NAT, and supports TLS for ultimate communication security.

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