Siemens S55 Operating Instructions Manual page 124

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 in place
phone not possible.
No entries in Ad- Phonebook is fulll.
dressbook possible.
Voice mail not Call divert to mailbox not set. Set call divert to mailbox (page 88).
functioning
SMS (text mes- SMS memory is full.
T
sage) flashing.
Function cannot Not supported by service
be set. provider or registration re-
quired.
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.
(page 100).
Check network barrings (page 99).
Try again later.
Reconnection to another service provider is automatic
(page 100). Switching phone off and on again can
speed this up.
'
Set first line (page 100).
Check for new barrings.
Reset limit with PIN 2 (page 32).
Load credit.
Barrings can be set by service provider. Check barring
(page 99).
Delete entries in Phonebook or transfer to Address-
book (page 23).
To free up capacity, delete (page 46) or file (page 46)
text messages (SMS).
Contact your service provider.
Delete files in the relevant areas.
Activate (page 65), set (page 65) WAP profile or
HTTP profile (page 68). If necessary ask your
service provider.
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