Free VoIP software

• VoIP software (72)

  • Call Manager
  • Comparison of VoIP software
  • Ekiga
  • Fring
  • Gizmo Project
  • Gizmo Project
  • Google talk
  • Ip pbx
  • Net2Phone
  • Nimbuzz
  • OpenSER
  • Skype
  • Softphone
  • Tpad
  • Truphone
  • Vbuzzer Messenger
  • Voipstunt
  • Windows Live Messenger
  • X-Lite
  • Yahoo messenger
  • Zfone
  • Asterisk Gateway Interface
  • Brosix
  • Call-Processing Language
  • Cisco IP Communicator
  • Coccinella (software)
  • CoolTalk
  • D2 Technologies
  • Dimdim
  • Echolink
  • Fetion
  • H323Plus
  • IPdrum
  • ISL Online
  • JSLEE
  • KCall
  • KPhone
  • Libsigcomp
  • Linphone
  • List of SIP software
  • Mercuro IMS Client
  • Mobicents
  • Mysipswitch
  • Natpass
  • Nautilus (secure telephone)
  • Nortel Communication Server 2100
  • Nortel Communication Servers
  • Nortel Proactive Voice Quality Management
  • Nuvoiz Communicator
  • OctroTalk
  • OfficeSIP Messenger
  • OmNovia Technologies
  • OpenH323
  • OpenSIPS
  • PGPfone
  • PhoneGaim
  • QuteCom
  • Revation Communicator
  • Roger Wilco (software)
  • SAM Broadcaster
  • SIP Express Router
  • SightSpeed
  • Sippy B2BUA
  • TeamSpeak
  • Teleo
  • VZOchat
  • Ventrilo
  • Vivox
  • Voice Operator Panel
  • VoiceChatter
  • Yuuguu
  • Zultys
  • sipX
  • more...

• Voice over IP (29)

  • Mobile voip
  • VoIP companies
  • VoIP hardware
  • VoIP services
  • Voip
  • Voip
  • Voip phone
  • Call recording software
  • Generic Access Network
  • IP-DECT
  • International gateway
  • Internet telephony service provider
  • Iobi
  • Media phone
  • MoIP
  • Peer-to-peer SIP
  • Purple minutes
  • SIP connection
  • SIP providers
  • UMA Today
  • VoIP VPN
  • VoIP organizations
  • VoIP protocols
  • VoIP recording
  • VoIP software
  • VoIP terminology & concepts
  • Voice Funnel
  • Voice engine
  • Voice over WLAN
  • Web based VoIP
  • more...

• VoIP terminology & concepts (36)

  • Session Initiation Protocol
  • Voice chat
  • Anti-tromboning
  • Back-to-back user agent
  • Call Agent
  • Call Agent
  • Call origination
  • Chatter bug
  • Host Media Processing
  • IP Multimedia Subsystem
  • International gateway
  • Internet telephony service provider
  • Lawful interception
  • Media Gateway Control Protocol
  • Media Gateway Control Protocol (MGCP)
  • Mouth-to-ear delay
  • Multimedia Telephony (MMTel)
  • Origination
  • Packet loss concealment
  • PacketCable
  • Purple minutes
  • Real-time Transport Protocol
  • SIP connection
  • STUN
  • Session border controller
  • Signaling gateway
  • Softphone
  • Traversal Using Relay NAT
  • Trunking gateway
  • Vishing
  • VoIP VPN
  • VoIP spam
  • Voice engine
  • Voice peering
  • Voip
  • WebCall
  • Wideband audio
  • more...

• XMPP clients (15)

  • Chikka
  • Free Jabber clients
  • GTalkr
  • Gizmo Project
  • Global Communications Network
  • Global Communications Network
  • Google talk
  • JAJC
  • Konnekt
  • List of XMPP client software
  • Nuvoiz Communicator
  • Pandion (software)
  • SIP Communicator
  • Trillian (software)
  • Vbuzzer Messenger
  • iChat
  • more...

• Windows instant messaging clients (60)

  • AOL Instant Messenger
  • Ayttm
  • BitWise IM
  • BitlBee
  • Brosix
  • Brosix
  • Chikka
  • Coccinella (software)
  • CustoMess
  • Digsby
  • Exodus (instant messaging client)
  • Fring
  • GOIM
  • Gadu-Gadu
  • Gajim
  • Gizmo Project
  • Google talk
  • IMVU
  • Instantbird
  • Integrity Messenger
  • Jabbim
  • Jabbin
  • Konnekt
  • MSNP-Sharp
  • Meetro
  • Microsoft Office Communicator
  • Miranda IM
  • Net2Phone
  • Nimbuzz
  • Nuvoiz Communicator
  • OctroTalk
  • Odigo Messenger
  • OfficeSIP Messenger
  • Overdose (software)
  • Pidgin (software)
  • PowWow (chat program)
  • Psi (instant messaging client)
  • Qnext
  • QuteCom
  • Serverless Instant Messenger
  • SightSpeed
  • Simple Instant Messenger
  • Skype
  • Tencent QQ
  • TerraIM
  • Tkabber
  • Trillian (software)
  • VZOchat
  • Vbuzzer Messenger
  • Vivox
  • Voipstunt
  • VoxOx
  • Wi-not mobile
  • Windows Live Messenger
  • Windows Messenger
  • Windows-only instant messaging clients
  • Yahoo messenger
  • aMSN
  • climm
  • emesene
  • miniaim
  • more...

• Freeware (10)

  • Collanos
  • RealPlayer
  • Vbuzzer Messenger
  • Gizmo Project
  • Skype
  • Skype
  • Fring
  • Truphone
  • Nimbuzz
  • Yahoo messenger
  • Google talk
  • more...

• Telecommunications terms

  • Call shop
  • Dialer
  • Voip

• VoIP protocols

  • H323
  • IAX
  • Session Initiation Protocol

• Teleconferencing (61)

  • Video conferencing
  • Vyke
  • AIM Call Out
  • AIM Phoneline
  • AT&T Connect
  • AT&T Connect
  • Audio to video synchronization
  • Brosix
  • CU-SeeMe
  • Cisco Telepresence
  • ClearMeeting
  • Collaboration Properties
  • Comparison of web conferencing software
  • Dimdim
  • DuoVideo
  • Earnings call
  • Ekiga
  • Floor control
  • Fring
  • Fuze Meeting
  • Genesys Conferencing
  • Glance Networks
  • GoToMeeting
  • H.331
  • H323
  • ICU Global
  • IPContact
  • ISL Online
  • InterActor
  • IvanAnywhere
  • List of video telecommunication services and product brands
  • Media phone
  • Megaconference
  • Millennium Mathematics Project
  • Nimbuzz
  • OctroTalk
  • Ontario Telemedicine Network
  • OpenCU
  • Oracle Beehive
  • ReadyTalk
  • Skype
  • Synchronous conferencing
  • TalkPoint
  • Teleconference
  • Teleseminars
  • Teletraining
  • Tokbox
  • VZOchat
  • Video banking
  • Video teleconferencing unit
  • Videocall
  • Videophone
  • Virtual Room Videoconferencing System
  • Virtual field trip
  • Virtual press conference
  • Vivox
  • VoxOx
  • Web conferencing
  • WebHuddle
  • WebTrain
  • Webcam
  • Yahoo! Voice
  • more...

• Mac OS X instant messengers (26)

  • AOL Instant Messenger
  • Adium
  • Ayttm
  • BitWise IM
  • BitlBee
  • BitlBee
  • ChitChat
  • Coccinella (software)
  • Fring
  • Gizmo Project
  • Kadu (software)
  • MCabber
  • MSNP-Sharp
  • Nimbuzz
  • Overdose (software)
  • Proteus (instant messaging client)
  • Psi (instant messaging client)
  • QuteCom
  • SightSpeed
  • Simple Instant Messenger
  • Skype
  • Tkabber
  • Vivox
  • VoxOx
  • aMSN
  • climm
  • iChat
  • more...

• VoIP companies (82)

  • Freshtel
  • Jajah
  • Rebtel
  • Sipgate
  • Snom
  • Snom
  • Sunrocket
  • Vonage
  • AT&T CallVantage
  • AVST
  • Aastra Technologies
  • Apptix
  • Bandwidth.com
  • BlueFace
  • Bond Wireless
  • BroadVoice
  • Clearwire
  • Com Hem
  • Comcast Corporation
  • Covad
  • Damovo
  • Deltathree
  • Dialogic Corporation
  • Dreamtilt
  • EarthLink
  • Eicon
  • FaktorTel
  • Fastweb (telecommunications company)
  • Free World Dialup
  • Gizmo Project
  • GlobalRoam
  • HipVoice
  • IPdrum
  • Internode Systems
  • Ipkall
  • Iristel
  • Lingo (VoIP Service operator)
  • MKC Networks
  • Mitel
  • Mobivox
  • NEC Philips
  • NextGenTel
  • Nokia Siemens Networks
  • Nortel
  • Nuvio Corporation
  • Orbitel
  • PhoneGnome
  • Primus Canada
  • Primus Telecom
  • Primus Telecom Australia
  • Radvision
  • Rigatta
  • SIP Broker
  • SPIRIT DSP
  • Signate
  • Skype
  • Skype Limited
  • Snapvine
  • Speakeasy (ISP)
  • T-Home Macedonia
  • TalkSwitch
  • Tdsoft
  • TelCentris
  • Telio
  • TouchWave
  • Tpad
  • Troy Cablevision
  • UTStarcom
  • Verizon Communications
  • Vivox
  • VocalTec
  • Vocalocity
  • VoicePulse
  • Voipfone
  • Voipstunt
  • Voxbone
  • Voxofon
  • Vyke
  • ZON Multimédia
  • Zoom Technologies
  • Zultys
  • engin
  • ooma
  • more...

• Linux instant messaging clients (36)

  • AOL Instant Messenger
  • Ayttm
  • BitWise IM
  • BitlBee
  • Centericq
  • Centericq
  • Coccinella (software)
  • Ekiga
  • Fama IM
  • Fring
  • Gabber (instant messaging client)
  • Gajim
  • Gizmo Project
  • Jabbim
  • Jabbin
  • KMess
  • Kadu (software)
  • Kopete
  • Licq
  • MCabber
  • MSNP-Sharp
  • Nimbuzz
  • Overdose (software)
  • Pidgin (software)
  • Psi (instant messaging client)
  • Qnext
  • QuteCom
  • Rhapsody (IRC client)
  • Skype
  • Tapioca (framework)
  • Tkabber
  • Tmsnc
  • Vivox
  • aMSN
  • climm
  • naim (chat program)
  • qutIM
  • more...

• Calling features (27)

  • Call transfer
  • Caller id
  • Conference call
  • Voicemail
  • 1-5-7-1
  • 1-5-7-1
  • Anonymous call rejection
  • Automatic callback
  • Automatic redial
  • Automatic ring back
  • Busy line interrupt
  • Busy verification
  • Call Blocking
  • Call Waiting Deluxe
  • Call Whisper
  • Call completion
  • Call forwarding
  • Call parking
  • Call waiting
  • Caller ID spoofing
  • Chat Lines
  • Collect call
  • Do Not Disturb (telecommu- nications)
  • Line hunting
  • Meridian Mail
  • PrivatePhone
  • Speed calling
  • Vertical service code
  • more...

• VoIP services (23)

  • VoIP User
  • AIM Call Out
  • AIM Phoneline
  • BT Fusion
  • Call You Free
  • Call You Free
  • Com Hem
  • Entanet
  • Fring
  • GlobalRoam
  • MindSpring
  • Nimbuzz
  • OctroTalk
  • Optimum Voice
  • PrivatePhone
  • Quikcycle
  • TelSIP
  • Teleo
  • TestYourVoIP
  • Truphone
  • Voxofon
  • Vyke
  • Yahoo! Voice
  • ZON Multimédia
  • more...

• Telephony

  • Pstn
  • Voip call center
  • Answering machine
  • Landline
  • Predictive dialer

• Free VoIP software (24)

  • Asterisk PBX
  • Druid OSE
  • Ekiga
  • Elastix
  • FreeSWITCH
  • FreeSWITCH
  • GNU Gatekeeper
  • KCall
  • KPhone
  • Linphone
  • LinuxMCE
  • Minisip
  • Mumble (software)
  • Mysipswitch
  • OpenSER
  • OpenSIPS
  • QuteCom
  • SIP Express Router
  • Sipdroid
  • Sippy B2BUA
  • Tapioca (framework)
  • Telephone (application)
  • TrixBox
  • Twinkle (software)
  • sipX
  • more...

• See also (20)

  • Software
  • Phone Calls
  • Free calls
  • Voice modem
  • Virtual pbx
  • Virtual pbx
  • UDP/IP
  • Ilbc
  • Peer-to-peer communications
  • Softswitch
  • Ivm
  • Callwave
  • Asterisk PBX
  • Shareware
  • Fxo
  • Software (novel)
  • Instant messenger
  • Microsoft Windows
  • Prontor-Compur
  • Circuit switching
  • TrixBox
  • more...

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