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Question
The handset does not
ring as it was set to.
Some of the ISDN func-
tions do not work as
indicated.
Another phone on the
So bus does not ring.
Caller receives ringing
despite MSN being busy.
Handset does not re-
ceive SMS as text
Possible cause
Other ringer melody set-
ting for MSN.
Feature not enabled?
The same MSN number
was assigned for the
phones. Internal for-
warding has additionally
been activated for one of
the phones.
MSN has been stored in
devices additionally op-
erated on the ISDN line.
You are not registered
with both SMS centres
Appendix
Possible solution
Change the ringer melo-
dy setting (page 33).
Contact your provider for
information.
Deactivate internal for-
warding or set external
call forwarding (page 55).
Where applicable, delete
the call number for which
do-not-disturb is to apply
while a call is in progress
from the list of call num-
bers of each additional
device.
Register with SMS cent-
ers (page 71).
89
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