Yealink SIP-T4X Administrator's Manual page 315

Parameter-
account.X.session_timer.refresher
Description
Format
Default Value
Range
Example
Parameter-
features.play_hold_tone.enable
Description
Format
Default Value
Range
Example
Parameter-
features.play_hold_tone.delay
Description
Configuration File
<MAC>.cfg
Configures the session timer refresher for
account X.
If it is set to 0 (UAC), refreshing the session is
performed by the IP phone.
If it is set to 1 (UAS), refreshing the session is
performed by the SIP server.
X ranges from 1 to 6.
Integer
0
Valid values are:
0-UAC
1-UAS
account.1.session_timer.refresher = 0
Configuration File
<y0000000000xx>.cfg
Enables or disables the IP phone to play a
tone when there is a hold call on the IP
phone.
Boolean
1
Valid values are:
0-Disabled
1-Enabled
features.play_hold_tone.enable = 1
Configuration File
<y0000000000xx>.cfg
Configures the interval (in seconds) at which
the IP phone plays a hold tone.
If it is set to 30, the IP phone will play a hold
tone every 30 seconds when there is a hold
Appendix
299