Administrator’s Guide for SIP-T58V/T58A/T56A/CP960 IP Phones400custom.handset.backlight_in_charger.enableHandset Backlight Configurationcustom.handset.backlight_out_of_charger.enablecustom.handset.screen_saver.enable Handset Screen Saver Configurationcustom.handset.auto_intercom DECT Intercom Configurationcustom.handset.language Language Display ConfigurationHandset Firmware Upgrade ConfigurationThe following table lists the parameters you can use to upgrade handset firmware.Parameter over_the_air.url .cfgDescriptionIt 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.PermittedValues URL within 511 charactersDefault BlankWeb UI Settings->Upgrade->Select and update handset firmware.Parameter over_the_air.url.w56h .cfgDescriptionIt 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”.PermittedValues URL within 511 charactersDefault BlankParameter over_the_air.handset_tip .cfgDescriptionIt 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.PermittedValues0-Disabled1-Enabled, the handset will pop up the message “Handset has a new firmware, update now?”.Default 1Parameter over_the_air.handset_trigger .cfgDescriptionIt enables or disables to upgrade the handset firmware compulsively when the handset is registered to aphone 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.PermittedValues0-Disabled, if “over_the_air.handset_tip” is se t to 1 (Enabled), it will pop up a tip on the handset to notifythe user to confirm upgrading the firmware or not. If “over_the_air.handset_tip” is set to 0, you may go toSettings->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.
