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Internet Phones

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Name Description
Mumble Low latency encrypted VoIP client
Ekiga H.323 and SIP compatible VoIP client
Jabbin Jabber IM client with VoIP support
Kiax IAX VoIP softphone
Coccinella Communication tool (XMPP/Jabber) with a built-in whiteboard
TeamSpeak VoIP chat for online gaming (server)
Twinkle Voice over Internet Protocol (VoIP) SIP Phone
Skype client for Skype VOIP and instant messaging service
Asterisk GUI Client GUI client application for the Asterisk open-source PBX
SJphone VoIP Internet phone
X-Lite VoIP Internet phone
WengoPhone SIP-based software telephone with video and chat (transitional package)
Kphone Voice over IP (VoIP) phone application
Ventrilo surround sound voice communication software
Zfone Secure Voice over IP (VoIP)
ISDNvbox ISDN utilities - answering machine dependency package
Flash Operator Panel switchboard type application for the Asterisk PBX
FreePBX Set up an Asterisk VOIP PBX
Siproxd SIP proxy/redirect/registrar
Shockvoice Server voice-over-ip communication tool similar to Teamspeak
Trixbox Setup a VoIP phone system
Linphone SIP softphone - graphical client
AsteriskNOW GUI for the Asterisk IP PBX software
Mangler Ventrilo compatible client for Linux
sipXecs open source alternative to commercial private branch exchange (PBX) systems