Can't place or receive calls

[diver]

hello  my xperia  v has new problem.its  on   and full signal but  someones calls me its of  or ı cant call.  it is making sometimes that    help plssssssss

[_alexdon_]

Have you tried another SIM?

[diver]

ı didınt  but   changed sim before     and when  restart   then work normal  

[_alexdon_]

You should get to a sony service:

http://www.sonymobile.com/global-en/support/contact-us/

[Rickard]

Sorry to hear you're having issues with calls.

If you have the 4G version of Xperia V, also make sure that your SIM-card and subscription supports 4G. If not you need to select WCDMA/GSM under Settings -> More -> Mobile networks -> Network mode to avoid this issue.

[diver]

do you mean that  ı just select only gsm?    thanks

[Rickard · Accepted solution]

Try using the phone on GSM only for a while and see if you still have this issue. 

[diver]

ok  ı did that  lets see    result  

[diver]

it keep on ,look like normal but cant call  maybe ı should change sim  better 128 kb  

[Rickard]

Yes, i would recommend that you try another SIM in that case. If the problem should remain with another SIM i recommend that you contact a service location or your local support team for assistance.