Grandstream Networks GRP26 Series Administration Guide

Trusted CA
Certificates
(1 – 6)
Allows to upload and delete the CA Certificate file to phone.
Note: Users can either upload the file directly from web or they can choose to provision it from their cfg.xml file.
Load CA
Certificates
Phone will verify the server certificate based on the built-in, custom or both trusted certificates list.
The default setting is “Default Certificates”.
Keypad Lock
Enable
Keypad
Locking
If set to “Yes”, the keypad can be locked by pressing and holding the STAR * key for about 4 seconds. And will also
allow automatic locking.
Keypad Lock
Type
If set to "Functional Keys", only "Functional Keys" will be locked but you are still allowed to make emergency calls. If
set to "All Keys", all keys will be locked and no emergency calls can be made.
Password to
Lock/Unlock
Password to Lock/Unlock
Keypad Lock
Timer
Configures the timeout (in seconds) of idle screen for locking keypad.
Valid range is 0 to 3600.
Emergency Defines emergency call numbers. If multiple emergency call numbers are entered, they should be separated by ‘,’.
System Settings 🡪 Preferences
Display Control
LCD
Backlight
Brightness:
Active
Configures the LCD brightness when the phone is active. The valid range is 10 to 100 where 100 is the brightest.
Default value is 100.
Backlight
Brightness:
Idle
Configures the LCD brightness when the phone is idle. Valid range is 0 to 100 where 0 is off and 100 is the brightest.
Default Value is 60.
Active
Backlight
Timeout
Configures the timeout interval of the LCD backlight. The valid range is 0 to 90.
Enable
Missed Call
Backlight
If set to “Yes”, the LCD backlight will be turned on when there is a missed call on the phone.
Blank Screen
Timeout
Configures how long it waits to turn off LCD automatically during non-office hour under Standard Mode. The valid range
is 0 to 90 minutes. 0 means disable Blank Screen feature.
Office Hour
Configures the Office hour shcedule by setting up the start Hour(0-24) and End Hour(0-24) of each day of the week , with
the possibility to add more than one shcedule per day.
LED
Line LED
Color
Configures line key LED color scheme to Default or Light up mode.
1. Default: off(idle)/green(in use)

Grandstream Networks GRP26 Series Specifications

General

Brand	Grandstream Networks
Model	GRP26 Series
Category	IP Phone
Language	English