Siemens M55 User Manual page 126

M55 Barracuda fug am, A31008-H6300-A40-1-4A19 (20. May 2003, 16:01)
126
Problem Possible causes
No network Weak signal.
connection.
Outside GSM range.
Invalid SIM card.
New network not authorised. Try manual selection or select a different network
Network barred.
Network overloaded.
Phone loses Signal too weak.
network.
Calls not possible. Second line set.
New SIM card inserted.
Charge limit reached.
Credit used up.
Certain uses of Call restrictions are in place. Barrings can be set by service provider. Check
phone not possible.
Impossible to make Phonebook is full.
entries in
Addressbook.
Voice mail not Call divert to mailbox not set. Set call divert to mailbox (p. 78).
functioning.
SMS (text SMS memory is full.
T
message)
flashing.
Function cannot be Not supported by service
set. provider or registration
required.
Capacity problems Handset memory full.
with, for example,
Games & More,
ringtones, pictures,
SMS archive.
No WAP access, Profile not activated, profile
downloading not settings wrong/incomplete.
possible.
Questions & Answers
Possible solution
Move higher, to a window or an open space.
Check service provider's coverage area.
Complain to the service provider.
(p. 87).
Check network barrings (p. 85).
Try again later.
Reconnection to another service provider is automatic
(p. 87). Switching phone off and on again can speed
this up.
Set first line (p. 86).
Check for new barrings.
Reset limit with PIN 2 (p. 44).
Load credit.
barrings (p. 85).
Delete entries in Phonebook or transfer to
Addressbook (p. 35).
To free up capacity, delete (p. 50) or file (p. 50) text
messages (SMS).
Contact your service provider.
Delete files in the relevant areas.
Activate (p. 68), set (p. 68) WAP profile or set HTTP
profile (p. 71). If necessary ask your service provider.