call error

[pradosh]

m experiencing a network failure quiet frequently only fr the calls i make.. incoming is pretty smooth

as soon as d call connects therz a loss in network simultaneously a disturbing sound is pumped out

and d call disconnects after a few seconds.. can yu plz lemme know whethr itz d upgrade issue or the phone has problems

or somethin related to the network.. CHEERS

[Jake-SonyXperia]

This sounds as though it is related to the SIM card or the software on the device, I first suggest trying another SIM card to see if the problem persists, if this does not resolve the issue, I would perform a software repair on the device to help rectify this.

PC Companion:

http://www.sonymobile.com/global-en/tools/pc-companion/