Restore To Factory Default Using Hard Keys; Change Log - Grandstream Networks WP820 Administration Manual

Restore to Factory Default using Hard Keys

In order to perform hard reset of the phone using keypad buttons please follow below steps:
1. Power cycle the WP820.
2. Press key 1 + key 9 immediately and hold it until the LCD shows the factory reset message.
3. Release the buttons and the phone will boot up with the default settings.
Important
When constraint mode or lock screen is enabled, the user will need to enter the admin password before the device can initiate
the factory reset process

CHANGE LOG

This section documents significant changes from previous firmware versions. Only major new features or major document
updates are listed here. Minor updates for corrections or editing are not documented here.
Firmware Version 1.0.7.58
Added the option Incoming Call Indicator.
Added the option Charging Indicator.
Added the option Charging Completed Indicator.
Integrated new DigiCert certificates.
Add support for TLS-Auth OpenVPN.
Added the ability to configure F-timer.
Added the ability to configure B-timer.
Added support for the Hungarian language.
Firmware Version 1.0.7.50
Added New options for screen lock
Added Ability to automatically switch to RTP/SRTP according to SIP transport
Added Second door system access for each door system configuration
Added Use # as Redial Key
Added Support for DHCP Option 150
Added Support for Minimum Jitter Buffer Length
Added Support for Maximum Jitter Buffer
Firmware Version 1.0.7.43
No major changes.
Firmware Version 1.0.7.30
Added ability to disable proximity sensor.
Added ability to disable multi-function button completely. [Preferences]
Firmware Version 1.0.7.26
Added Sensor calibration feature code ***2223*.
Firmware Version 1.0.7.22
[Enable Incoming
[Enable Charging
[Enable Charging Completed
[Import Trusted CA
[OpenVPN® TLS Key
[SIP TIMER F INTERVAL]
[SIP TIMER B INTERVAL]
[Hungarian
[Security Settings]
[Account/Call Settings]
[Upgrade & Provision]
[Account/Codec
[Account/Codec
[Call Settings]
Indicator]
Indicator]
Indicator]
Certificates]
Type]
Language]
[Account/Codec
[Door System]
Settings]
Settings]
Settings]