Personal Home
Support Centre
Device Guides
Samsung
Galaxy S21 5G
Calls & contacts
I can't make voice calls
Samsung Galaxy S21 5G
Android 11.0
Search for a topic or a problem
Getting started
Basic functions
Calls & contacts
Messaging & email
Internet & entertainment
Data & wireless
Back to section Calls & contacts
I can't make voice calls
There's no credit on your prepaid phone
Your number is no longer in service
Flight mode is turned on
Barring of outgoing calls is turned on
Your phone is overloaded for unknown reasons
The SIM is faulty
Not adequate network coverage
There is a temporary network problem
There's an error at the receiving end
The selected network is out of range
The selected network mode is not available
Roaming isn't activated on your service
Contact us
for further assistance.
Did this solve your problem?
Yes
No
There's no credit on your prepaid phone
Your number is no longer in service
Contact us
for further assistance.
Did this solve your problem?
Yes
No
Flight mode is turned on
Barring of outgoing calls is turned on
Your phone is overloaded for unknown reasons
The SIM is faulty
Not adequate network coverage
There is a temporary network problem
There's an error at the receiving end
The selected network is out of range
The selected network mode is not available
Roaming isn't activated on your service