Yealink SIP-T2 SERIES Administrator's Manual page 655

Parameters
Features->Action URL->On Hook
Phone User Interface:
None
action_url.incoming_call
Description:
Configures the action URL the IP phone sends when receiving an incoming call.
Example:
action_url.incoming_call = http://192.168.0.20/help.xml?IP=$ip
Web User Interface:
Features->Action URL->Incoming Call
Phone User Interface:
None
action_url.outgoing_call
Description:
Configures the action URL the IP phone sends when placing a call.
Example:
action_url.outgoing_call = http://192.168.0.20/help.xml?IP=$ip
Web User Interface:
Features->Action URL->Outgoing Call
Phone User Interface:
None
action_url.call_established
Description:
Configures the action URL the IP phone sends when establishing a call.
Example:
action_url.call_established = http://192.168.0.20/help.xml?IP=$ip
Web User Interface:
Features->Action URL->Established
Phone User Interface:
None
Configuring Advanced Features
Permitted Values
URL within 511 characters
URL within 511 characters
URL within 511 characters
Default
Blank
Blank
Blank
633