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Mizu SIP SoftPhone Free v.3.2.6
MizuPhone is a free VoIP softphone for Windows which can be used with any softswitch or PBX using the industry standard SIP and RTP protocols.
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MizuDroid v.2.3
MizuDroid is a professional VoIP softphone for Android which can be used with any softswitch or PBX using the industry standard SIP and RTP protocols.
OfficeSIP Messenger
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
ZOIPER Free IAX and SIP softphone
ZOIPER 2.0 Free IAX and SIP is a user-friendly softphone, compatible with Asterisk or any other IAX or SIP capable system. High-quality VoIP calling experience with features like: IAX + SIP protocols, SIP over TCP/TLS/UDP(STUN support), Echo cancellation,
Free Premium Softphone Software
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
Mizu SoftPhone Free v.1. 4. 2004
Full featured VOIP softphone based on the open standard SIP protocol. With MizuPhone you can connect to any SIP (proxy and/or registrar) server on the public internet or on your local area network. MizuPhone tries to combine the SIP compatibility
Express Talk Free VoIP Softphone for Mac v.4.04
Express Talk is software that works like a telephone to let you make calls on your Mac OS X.
3CXPhone FREE VoIP Phone for Windows
Free VOIP / SIP phone (softphone) for Windows. Use your PC as a phone. Works with popular VOIP providers and SIP PBX's (including 3CX Phone System). The interface is easy to use and similar to that of popular Smartphones. 3CXPhone is compact and easy to
Express Talk VoIP Softphone v.4.26
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.
Zoiper Free v.2.37
Zoiper Free is a IAX and SIP softphone for Windows, Mac OS X and Linux. Its user-friendliness, diversity and richness of features set new standards for functionality and perfection. Choose your operating system, download Zoiper, install it, connect
Express Talk Business VoIP Softphone v.4.35
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.