Personal Home
Support Centre
Device Guides
Apple
iPhone 6s Plus
Calls, contacts & calendar
I can't make voice calls
Apple iPhone 6s Plus
iOS 9.0
iOS 10.0
iOS 11.0
Search for a topic or a problem
Getting started
Basic functions
Calls, contacts & calendar
Messaging & email
Internet & entertainment
Data & wireless
Popular apps
Back to section Calls, contacts & calendar
I can't make voice calls
Your phone is overloaded for unknown reasons
The SIM is faulty
There's an error at the receiving end
The selected network is out of range
Roaming isn't activated on your service
There's no credit on your prepaid phone
Your number is no longer in service
Flight mode is turned on
Not adequate network coverage
There is a temporary network problem
Restart your phone
Previous step
Next step
1
Restart your phone
Press and hold
the Home key
.
Simultaneously, press and hold
On/Off
until your phone restarts.
Did this solve your problem?
Yes
No
Your phone is overloaded for unknown reasons
Restart your phone
Previous step
Next step
1
Restart your phone
Press and hold
the Home key
.
Simultaneously, press and hold
On/Off
until your phone restarts.
Did this solve your problem?
Yes
No
The SIM is faulty
There's an error at the receiving end
The selected network is out of range
Roaming isn't activated on your service
There's no credit on your prepaid phone
Your number is no longer in service
Flight mode is turned on
Not adequate network coverage
There is a temporary network problem
