Simple SIP (VOIP) based phoneSipek VoIPPortSIP VoIP SDKOZEKI VoIP SDKABTO VoIP SIP SDK
Audio Peer 2 PeerYesYesYesYesYes
Video Peer 2 PeerNoNoYesNoYes
Audio ConferencenonoAudio conferencing, support maximum 100 parties audio conferencingnoyes
Video ConferencenonoVideo conferencing, support maximum 30 parties video conferencingnono
SIP SIMPLEYesYesYesYesYes
BillingNoNo-NoNo
Termination based in timer and credit----No
Group ChatNo-YesNoNo
File Transfer-No-NoNo
LoggingYesYesYesYesYes
registeringYesYesYesYesYes
User managementYesNo-YesYes
Client VersionYesNoYesNoYes
Developer documentationNoNoYesYesYes
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