Avaya 3749 Guia Do Utilizador

This section contains information on how to solve common operational problems, and warnings 
you may receive.

Go through the following lists if you encounter any problems. If this checklist does not solve the 
problem, contact your system administrator. 

If others have similar problems, there may be a system error.

No display

The battery level is low or the 

telephone is defective.

Charge the battery or contact 

system administrator.

No ringing

The sound off icon is on, or ringer 

volume set to silent, or the 

telephone is defective.

Long press the Sound off key, 

or increase volume, or contact 

system administrator.

No change in time & 

date setting

PBX dependent.

Changes in the telephone 

appear after a maximum of 24 

hours after a change in the 

system or by turning the 

telephone off and on again.

Bad sound during 

conversation in a call 

or for any dial tones on 

the 3749 in 

loudspeaker mode.

The handset loudspeaker volume 

level is set to high for the current 

connection. Received speech 

volume of dialog person is too 

loud.

Reduce volume for the 

loudspeaker.

No access

The network is in range, but no 

access rights.

Switch telephone off and then 

switch it on again or contact 

system administrator.

No System. The 

telephone beeps once 

a minute (during max 

30 minutes) with a low 

tone followed by a high 

tone (if enabled, the 

vibrator also follows 

the beeps).

The telephone is out of coverage 

or telephone is defective.

Stop the beep with the Sound 

off key and go into range.

Note: When re-entering the 

coverage area it can take a 

couple of minutes before the 

telephone automatically has 

registered into the system.
or
contact system administrator.