Com SIP L TM
ComSIPL is a SIP/UDP/IP based Communication Server and Proxy
For Voice / Presence / Video / Instant Messaging communication use.

Tested and working software clients:
Application OS Auto Register Instant Message Place and Receive CallsPublish PresenceSubscribe/NOTIFY Presence
Twinkle Linux ✓ ✓ ✓ ✓ ✓PIDF
MicroSIP Windows ✓ ✓ ✓ ✓ ✓PIDF
Linphone Linux ✓ ✓ ✓ ✓ NO
Linphone Windows ✓ ✓ ✓ ✓ NO
Linphone Andriod ✓ ✓ ✓ ✓ NO
Zoiper5 FreeWindows ✓ Not a client option ✓ ✓ ✓
Pidgin Linux ✓ ✓ Not a client option ✓ ✓PIDF + PIDF:IM
Pidgin Windows ✓ ✓ Not a client option ✓ ✓PIDF + PIDF:IM
3CXphone Windows ✓ Not a client option ✓ Yes, but not correctlyNO


Software clients that do not work:

Application OS
Gnome-calls Linux
Cisco Jabber Window
Cisco IP Communicator Windows

Software clients currently testing:

Application OS
3CX Windows