Sony Xperia M making and receiving calls problems

[Alihope]

My phone was working fine until few weeks ago. It doesn't seem to be a problem of coverage, I keep on receiving messages.
When I try to call it would stop with a beep and when somebody calls me they get a message that my phone is turned off.
I reset it yesterday and tried another sim card but the issue seems to persist.can somebody helps me?
Thanks
Alice

[Phy]

That seems to be
a hardware issue, contact Sony Xperia Support
http://support.sonymobile.com/global-en/contactUs/

[goelaakash90]

try another sim in your mobile and try your sim in another mobile.

see which of them works.

[Uliwooly]

That seems to be a SIM card issue or a network coverage issue