Yealink SIP-T54S Administrator's Manual page 762

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
Configures the action URL the IP phone sends when failing to transfer a call.
Example:
action_url.transfer_failed = http://192.168.0.20/help.xml?IP=$ip
Web User Interface:
Features->Action URL->Transfer Failed
Phone User Interface:
None
action_url.setup_autop_finish
Description:
Configures the action URL the IP phone sends when completing auto provisioning via
power on.
Example:
action_url.setup_autop_finish = http://192.168.0.20/help.xml?IP=$ip
Web User Interface:
Features->Action URL->Autop Finish
Phone User Interface:
None
action_url.call_waiting_on
Description:
Configures the action URL the IP phone sends when call waiting feature is enabled.
Example:
action_url.call_waiting_on = http://192.168.0.20/help.xml?IP=$ip
Web User Interface:
Features->Action URL->Open Call Waiting
Phone User Interface:
None
action_url.call_waiting_off
Description:
Configures the action URL the IP phone sends when call waiting feature is disabled.
736
Parameters Permitted Values
URL within 511 characters
URL within 511 characters
URL within 511 characters
Default
Blank
Blank
Blank