Troubleshooting - Topcom BUTLER 4570 User Manual

Topcom Butler 4570
10.4.4 TAKING AN EXTERNAL CALL DURING AN INTERNAL COMMUNICATION
When you are on intercom with another handset, you can still pick up outside calls.
To take an incoming call:
• Press . The internal communication is interrupted.
• Then press .You are in communication with the outside caller.

11 TROUBLESHOOTING

Symptom
No display
No tone
The icon flashes
Base or handset do not ring The ringing volume is zero
Not possible to transfer a
call on PABX
Telephone does not react
to pressing the keys
Topcom Butler 4570
Possible cause
Batteries uncharged
Handset turned OFF
Telephone cord badly con-
nected
The line is occupied by
another handset
Handset out of range
The base has no power
supply
The handset is not regis-
tered on the base
or low
The FLASH time is too
short
Manipulation error
Solution
Check the position of the
batteries
Recharge the batteries
Turn ON the handset
Check the telephone cord
connection
Wait until the other handset
hangs up
Bring the handset closer to
the base
Check the mains connec-
tion to the base
Register the handset on
the base
Adjust the ringing volume
Set the unit to Long Flash
time
Remove the batteries and
put them back in place
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