Avaya 5620SW + EU24 用户手册

Adjusting the Display Contrast 

Changing the 5620 Options - Page 25 

IP Office (R3.0) 5620SW + EU24 User’s Guide 

Changing the 5620 Options - Page 25 

40DHB0002USEP – Issue 1 (13th January 2005) 

Adjusting the Display Contrast 

You can adjust the contrast level on the telephone display. You can choose from 
among fifteen levels of contrast. 
1. Press   Options and then select 

 Contrast Control  

2.  Use either the 

   or   key to adjust the level of contrast. 

3.  When the contrast is set as required, either:  

•  Save and return to the options menu by pressing 

 Save. 

•  Press  

 Cancel to return to the options menu. 

 

Allows you to log your telephone off to prevent unauthorized use during an absence, or 
for privacy purposes 

CAUTION:   Logging off deletes all Call Log entries and returns any options you may 

have changed to their default values. 

1. Press 

 Options and  

 Log off. 

2. Select   Yes to un-register your phone from the IP Office, delete all Call Log 

entries and returns any options you may have configured to their default values. 

3. Selecting   No returns you to the main Option menu; your phone remains logged 

on to the network and your Call Log and options values remain unchanged. 

 
To log back on: 
1.  The display will show Ext.=xxx in the top row. Simply press # and enter your 

password (consult your System Administrator). 
 

The 5620 IP Telephone's backup/restore options require set up and configuration by 
the system administrator prior to use. These options are displayed on the telephone 
screen via the Options button, but will only be amendable if they have been configured 
by the system administrator.  

The backup/restore options provide the ability to: 

• 

Back up your options/preference settings, your Speed Dial button labels, names, 
and numbers automatically whenever you save a change to any one of those 
settings or buttons. Automatic backup protects this data against system failure. 

• 

Restore options settings and Speed Dial button labels, names and numbers 
following a phone failure or replacement. 

• 

Establish or modify FTP (File Transfer Protocol) settings such as the network 
server address, directory path for saving backed-up data, and a User ID and 
Password for server access via your phone. 

• 

Verify whether an automatic backup has occurred.  
 

Because each telephone system has unique characteristics and settings, modifying the 
Backup/Restore options generally require the assistance of the System Administrator. 
For example, it is unlikely that a 5620 IP Telephone user would know the specific 
Server IP Address to enter when setting up FTP parameters. Hence: