Yealink SIP T2 Series Provisioning Manual page 117

Parameter
phone_setting.is_deal180
phone_setting.product_name
phone_setting.common_power_led_enable
(only applicable to SIP-T48G IP phones)
Permitted
Values
Customring.w
av)
It enables or disables the IP phone to deal with the
180 SIP message received after the 183 SIP
message.
0-Disabled
0 or 1 1-Enabled
If it is set to 1 (Enabled), the IP phone will resume
and play the local ringback tone upon a
subsequent 180 message received.
The default value is 0.
It configures the product name of the IP phone.
For SIP-T48G IP phones:
The default value is SIP-T48G.
String within
For SIP-T22P IP phones:
99 characters
The default value is SIP-T22P .
For SIP-T22 IP phones:
The default value is SIP-T22.
It enables or disables the power indicator LED to
0 or 1
be turned on.
Descriptions
Features->General Information->180
Ring Workaround
Features->Power LED->Common
Power Light On
Appendix
Web Setting Path
111