Yealink SIP-T2 SERIES Administrator's Manual page 661

Parameters
Configures the action URL the IP phone sends when pressing the Speakerphone key.
Example:
action_url.handfree = http://192.168.0.20/help.xml?IP=$ip
Note: It is not applicable to CP860 IP phones.
Web User Interface:
Features->Action URL->Handfree
Phone User Interface:
None
action_url.cancel_callout
Description:
Configures the action URL the IP phone sends when cancels the outgoing call in the
ring-back state.
Example:
action_url.cancel_callout = http://192.168.0.20/help.xml?IP=$ip
Web User Interface:
Features->Action URL->Cancel Call Out
Phone User Interface:
None
action_url.remote_busy
Description:
Configures the action URL the IP phone sends when the outgoing call is rejected.
Example:
action_url.remote_busy = http://192.168.0.20/help.xml?IP=$ip
Web User Interface:
Features->Action URL->Remote Busy
Phone User Interface:
None
action_url.call_remote_canceled
Configuring Advanced Features
Permitted Values
URL within 511 characters
URL within 511 characters
URL within 511 characters
Default
Blank
Blank
Blank
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