I can create this issue every time and I bet you can too on your HTC 8x (I haven't tried on a Lumia 920 or 822 yet).
Hold your windows button down and say "Call (a contact) on speaker". The phone will dial the number and you will no longer have speaker and MIC for your phone. When you call someone they will only get silence on their end and you cannot hear anything. The problem then goes beyond that one call and if anyone calls you or you call them it does the same thing, no matter how you try to call them again. The only fix is to then reboot your phone and it will work fine again.
Now I know most people do not make phone calls like this, but with my old Trophy I loved the voice control and getting it to call on the speaker phone hands free. I did call support and they had not seen this so they sent me a second phone. The second phone does it too. I have yet to try it on another windows phone to see if the same thing happens, but I would guess it will???
Update - I had my sister-in-law try this on her ATT 920 and it does not do this, it works fine. I guess I am going to a 822 instead maybe...
Hold your windows button down and say "Call (a contact) on speaker". The phone will dial the number and you will no longer have speaker and MIC for your phone. When you call someone they will only get silence on their end and you cannot hear anything. The problem then goes beyond that one call and if anyone calls you or you call them it does the same thing, no matter how you try to call them again. The only fix is to then reboot your phone and it will work fine again.
Now I know most people do not make phone calls like this, but with my old Trophy I loved the voice control and getting it to call on the speaker phone hands free. I did call support and they had not seen this so they sent me a second phone. The second phone does it too. I have yet to try it on another windows phone to see if the same thing happens, but I would guess it will???
Update - I had my sister-in-law try this on her ATT 920 and it does not do this, it works fine. I guess I am going to a 822 instead maybe...
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