Com
SIP
L
|
TM |
| Application | OS | Auto Register | Instant Message | Place and Receive Calls | Publish Presence | Subscribe/NOTIFY Presence |
| Twinkle | Linux | ✓ | ✓ | ✓ | ✓ | ✓PIDF |
| MicroSIP | Windows | ✓ | ✓ | ✓ | ✓ | ✓PIDF |
| Linphone | Linux | ✓ | ✓ | ✓ | ✓ | NO |
| Linphone | Windows | ✓ | ✓ | ✓ | ✓ | NO |
| Linphone | Andriod | ✓ | ✓ | ✓ | ✓ | NO |
| Zoiper5 Free | Windows | ✓ | 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 correctly | NO |
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| Application | OS |
| Gnome-calls | Linux |
| Cisco Jabber | Window |
| Cisco IP Communicator | Windows |
| Application | OS |
| 3CX | Windows |