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Simple SIP (VOIP) based phone
Sipek VoIP
PortSIP VoIP SDK
OZEKI VoIP SDK
ABTO VoIP SIP SDK
Audio Peer 2 Peer
OuiOuiOuiOuiOui
Video Peer 2 Peer
NonNonOuiNonOui
Audio Conference
nonoAudio conferencing, support maximum 100 parties audio conferencingnoyes
Video Conference
nonoVideo conferencing, support maximum 30 parties video conferencingnono
SIP SIMPLE
OuiOuiOuiOuiOui
Billing
NonNon-NonNon
Termination based in timer and credit
----Non
Group Chat
Non-OuiNonNon
File Transfer
-Non-NonNon
Logging
OuiOuiOuiOuiOui
registering
OuiOuiOuiOuiOui
User management
OuiNon-OuiOui
Client Version
OuiNonOuiNonOui
Developer documentation
NonNonOuiOuiOui