phone calls.hangs when using dual sim

[abhi_khurana]

Hello guys, i hve t2 ultra dual as i has dual sim option bt whenever i use dual sims my phone hangs during the calls. Also the voice quality become low whenever i uses. Durung a call it tend dat the phone has weak network and voice cuts during the calls. Bit whenever i ises single sim....no issues with the voice and call quality. I also visited services 4 tyms....no solution has been provided except rebooting the phone.

[abhi_khurana]

Its only my phone's problem....or its happening in other t2 ultra dual devices too...?

[Phy]

Does your phone feel slow and laggy?

http://talk.sonymobile.com/t5/FAQ/Does-your-phone-feel-slow-and-laggy/m-p/347824#U347824

[abhi_khurana]

No phone is nt slow bt smtyms hangs a little wen playing high end games..bt it regularly hangs wenevr i make calls while using both sim cards...bt wenevr using single sim...its jst superb

[abhi_khurana]

Also the voice breaks wen i make calls wen both the sims r enabled....