Yealink SIP-T3 Administrator's Manual page 528

Permitted
URL within 511 characters
Values
Default Blank
Web UI Features > Action URL > Busy to Idle
Parameter action_url.idle_to_busy
It configures the action URL the phone sends when changing the state of the phone from idle to busy.
Description Example:
action_url.idle_to_busy = http://192.168.0.20/help.xml?IP=$ip
Permitted
URL within 511 characters
Values
Default Blank
Web UI Features > Action URL > Idle to Busy
Parameter action_url.ip_change
It configures the action URL the phone sends when changing the IP address of the phone.
Description Example:
action_url.ip_change = http://192.168.0.20/help.xml?IP=$ip
Permitted
URL within 511 characters
Values
Default Blank
Web UI Features > Action URL > IP Changed
Parameter action_url.reject_incoming_call
It configures the action URL the phone sends when rejecting an incoming call.
Description Example:
action_url.reject_incoming_call = http://192.168.0.20/help.xml?IP=$ip
Permitted
URL within 511 characters
Values
Default
Blank
Web UI
Features > Action URL > Reject Incoming Call
Parameter action_url.answer_new_incoming_call
It configures the action URL the phone sends when answering a new incoming call.
Description Example:
action_url.answer_new_incoming_call = http://192.168.0.20/help.xml?IP=$ip
Permitted
URL within 511 characters
Values
Default Blank
Web UI Features > Action URL > Answer New Incoming Call
Parameter action_url.forward_incoming_call
Description It configures the action URL the phone sends when forwarding an incoming call.
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Advanced Features
522