Zte Z791 User Manual page 150

Problem
Unable to
connect to
the network
Cannot
answer
incoming
calls
You cannot
make
outgoing
calls.
Possible causes
SIM card invalid.
You are not within the
network's service area.
Poor signal.
You have activated the
Call barring feature.
You have activated the
Call barring feature.
Possible solution
Contact your service
provider.
Check the service area
with your service
provider.
Move to an open space,
or if you are inside a
building, move closer to
a window.
Go to
Key > Settings > Call
Barring Settings, and
then select Deactive
All.
Go to
Key > Settings > Call
Barring Settings, and
then select Deactive
All.
150
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