Yealink T5 Series Administrator's Guide

Administrator’s Guide for SIP-T58V/T58A/T56A/CP960 IP Phones
400
custom.handset.backlight_in_charger.enable
Handset Backlight Configuration
custom.handset.backlight_out_of_charger.enable
custom.handset.screen_saver.enable Handset Screen Saver Configuration
custom.handset.auto_intercom DECT Intercom Configuration
custom.handset.language Language Display Configuration
Handset Firmware Upgrade Configuration
The following table lists the parameters you can use to upgrade handset firmware.
Parameter over_the_air.url <y0000000000xx>.cfg
Description
It configures the access URL of the handset firmware file.
Note: The priority of parameter “over_the_air.url” is lower than “over_the_air.url.w56h”/“over_the_air-
.url.w52h”. It is not applicable to W53H handset.
Permitted
Values
URL within 511 characters
Default Blank
Web UI Settings->Upgrade->Select and update handset firmware.
Parameter over_the_air.url.w56h <y0000000000xx>.cfg
Description
It configures the access URL of the W56H handset firmware file.
Note: The priority of parameter “over_the_air.url.w56h” is higher than “over_the_air.url”.
Permitted
Values
URL within 511 characters
Default Blank
Parameter over_the_air.handset_tip <y0000000000xx>.cfg
Description
It enables or disables to pop up a tip when upgrading the handset firmware from the provisioning server.
Note: It works only if “over_the_air.base_trigger” and “over_the_air.handset_trigger” are set to 0 (Dis-
abled). It is not applicable to DD phones.
Permitted
Values
0-Disabled
1-Enabled, the handset will pop up the message “Handset has a new firmware, update now?”.
Default 1
Parameter over_the_air.handset_trigger <y0000000000xx>.cfg
Description
It enables or disables to upgrade the handset firmware compulsively when the handset is registered to a
phone or turned on successfully.
It is only applicable when the current handset firmware is different with the one on provisioning server.
Note: It is not applicable to DD phones.
Permitted
Values
0-Disabled, if “over_the_air.handset_tip” is se t to 1 (Enabled), it will pop up a tip on the handset to notify
the user to confirm upgrading the firmware or not. If “over_the_air.handset_tip” is set to 0, you may go to
Settings->Upgrade Firmware on handset to trigger the upgrading manually.
1-Enabled, it will upgrade the handset firmware compulsively without a pop-up tip on the handset.

Yealink T5 Series Specifications

General

Brand	Yealink
Model	T5 Series
Category	IP Phone
Language	English