Maxcom MM824 User Manual page 92

„How to get the
most of
reception?"
92
If there is a message „Does not work"
or "No Service" on the display, it
means there is no signal or sufficient
funds on the account. In such a case,
only making emergency call 112 is
possible as long as the User is in the
area covered by another service
provider.
Reception might be weaker if you are
inside buildings. Move towards
windows or get outside.