Data traffic turned on, during a call the opposite side can't hear me at all

[prolupankich_ho]

Hi there,

When data traffic is turned on for 2nd sim, and i'm receiving or doing a call on that same sim, the opposite side can't hear me at all...

I must end a call, turn off the traffic on sim, and then make a call again, or wait for a call...

Please, is there some solution for that?

E Dual C1604...

Android version 4.1.1.

Thanks in advance,

Brgds

[_alexdon_]

As the phone is dual standby,only one SIM can be active at a time.

[prolupankich_ho]

I'm aware of that, but it's the same sim and only when the Data traffic is on...

[_alexdon_]

If you set the mobile data on the first SIM,how is the second?

[prolupankich_ho]

No, mobile data is set only on 2nd sim, and it's happening during the calls on 2nd sim and during the Viber calls as well.

[_alexdon_]

Oh,it is on the same SIM?Probably it cannot handle too well both processes,as it is GSM only.I would advice you to stop by a sony centre.

[prolupankich_ho]

Ok, it says this on gsm arena.

2G Network	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network	HSDPA 900 / 2100 - C1605
	HSDPA 850 / 1900 / 2100 - C1604

Sorry, i'm not the expert in this stuff, so...

What should i ask them?

[_alexdon_]

Why does that occur,that is what you should ask.I know that dual standby phones can only have 1 active SIM at a time and while one runs on 3G,the other can work on 2G also.

[prolupankich_ho]

Could they help me if i mail them?

is that hardware or software problem? or sim problem?

Couse the nearest Center is miles from me...

[_alexdon_]

You could give them an email:

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