Set the URL for Registered under Phone | Action URL on the telephones configuration screen. The phone must be rebooted in order for the change to take affect.
If the extension is not specified then the system will attempt to find the MAC address in a mailbox. It will first search the MWI lists for the MAC address in the description field. If not found it will then search for the MAC address assigned to the mailbox. The MAC address in the MWI list must be entered as uppercase without any colons.
| $ip | The current ip address of the phone. |
|---|---|
| $mac | MAC address of the telephone. |
| $active_user | This is the current active telephone user. Typically this is the extension number. |