Grandstream Networks GXP21 Series

Co
nta
cts
Contacts sub menu includes the following options:
Local Phonebook
Local Group
LDAP Directory
Contacts sub menu is for Local Phonebook, Local Group, LDAP Directory and Broadsoft Phonebooks. User could
configure phonebooks/groups/LDAP options here, download phonebook XML to the phone and search
phonebook/LDAP directory.
Me
ssa
ges
Message sub menu include the following options:
Instant Message
Displays received instant messages;
Voice Mails
Displays voicemail message information in the format below: new messages/all messages (urgent messages/all
urgent messages).
Pre
fer
enc
e
Preference sub menu includes the following options:
Do Not Disturb
Enables/disables Do Not Disturb on the phone.
Star Key Lock
Turns on/off keypad lock feature and configures keypad lock password. The default keypad lock password is null. If
user enabled Star Key lock without configuring password, user can unlock keypad by holding * key 4 seconds and
pressing “OK” button.
Sounds
Ring Tone
Configures different ring tones for incoming call.
Ring Volume
Adjusts ring volume by pressing left/right arrow key.
Appearance
Active LCD Brightness
Adjusts active LCD brightness by pressing left/right arrow key
Idle LCD Brightness
Adjusts idle LCD brightness by pressing left/right arrow key
Active LCD Timeout
Adjusts the minute of active backlight timeout.
Screensaver
Enables/Disables Screensaver
Screensaver Timeout
Configures the minutes of idle before the screensaver activates.