Yealink SIP-T23, Provisioning Manual

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Yealink IP Phones Auto Provisioning Guide
292
Parameter
Permitted
Values
Descriptions Web Setting Path
account.X.ringback_duration_time
(X ranges from 1 to 3)
Integer from
64 to +
∞
It configures the duration time (in seconds) in
the ringback state.
If it is set to 180, the phone will cancel the
dialing or reject the incoming call if the call is
not answered within180s.
The default value is 180.
account.X.call_info
(X ranges from 1 to 3)
String within
256 characters
It configures the Call-Info header.
The default value is blank.
account.X.call_id_mode
(X ranges from 1 to 3)
0, 1 or 2
It configures the constitution of call ID.
0-Use random digits
1–Use the combination of the digits and
letters
2–Use random digits plus MAC address
The default value is 2.
account.X.subscribe_expires_overlap
(X ranges from 1 to 3)
Positive
integer
It configures the renewal time away from the
registration lease.
The default value is -1.
It takes effect after a reboot.
account.X.register_expires_overlap
(X ranges from 1 to 3)
Positive
integer
It configures the renewal time (in seconds)
away from the subscription lease.