[Lakerveld]

Lumia 800:

When I have a missed call, I tab on it to return the phone call. After that, the lumia just freezes and restarts itself after a minute.Is that normal behaviour?

Also: i need to adjust the volume of ring and message tones (I am always in noisy surroundings and I can't hear any beeps or ringing.

I would like to change ringtones and message tones, How to do that?

Ed

[patriciaanne3]

On mine you just have to select the phone tile and then seleect the missed number - it shouldn't freeze.

Perhaps if you switch the phone off then after a few minutes on again it might cure the problem. 

I had to do a full reset when having problems with mine.

[zebrafisch]

I have the same problem! When i miss a call and i want to call back then the phone switches off and reboots!! it's so annoing!!

Another problem:

If the phone accu is loading i cant do anything with the phone, the touch scree doesn't work. i have to switch off the electrical connection and then it works fine.

[r2504]

Maybe your issue is the same as discussed in /t5/Nokia-with-Windows-Phone/Can-t-end-a-call-in-lumia-800/td-p/1237367

[albertqi]

If you would like to change ringtones and message tones, just press the up volume key on the right side of the phone.

[zebrafisch]

the problem is:

i press the telephone button to call the missed call back. as soon as the other part takes on the call my phone reboots. the other one can hear me for a second.

why cant i load my accu when the telephone is switched off? it switches itself on, if it is loaded