11 troubleshooting – Topcom BUTLER 4570 User Manual
Page 25

Topcom Butler 4570
EN
GLISH
Topcom Butler 4570
25
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
Possible cause
Solution
No display
Batteries uncharged
Check the position of the
batteries
Recharge the batteries
Handset turned OFF
Turn ON the handset
No tone
Telephone cord badly con-
nected
Check the telephone cord
connection
The line is occupied by
another handset
Wait until the other handset
hangs up
The icon
flashes
Handset out of range
Bring the handset closer to
the base
The base has no power
supply
Check the mains connec-
tion to the base
The handset is not regis-
tered on the base
Register the handset on
the base
Base or handset do not ring The ringing volume is zero
or low
Adjust the ringing volume
Not possible to transfer a
call on PABX
The FLASH time is too
short
Set the unit to Long Flash
time
Telephone does not react
to pressing the keys
Manipulation error
Remove the batteries and
put them back in place