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View Poll Results: Have you encountered the exact same issue?
Yes 2 25.00%
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Nexus 5 on 4.4.2 (49H) CALL ENDED

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b1g1an
Old
#11  
Senior Member
Thanks Meter 41
Posts: 203
Join Date: Nov 2011
On the Android issue tracker several people seem to have got over the no call problem permanently by simply deactivating 'wifi optimisation' in the settings.
 
serzhanja
Old
#12  
Junior Member - OP
Thanks Meter 8
Posts: 19
Join Date: Sep 2012
False alarm.

I've performed an experiment, in which I travelled around the city from most busy to less busy districts and the problem appeared in those more busy. I linked this to some problems with mobile network provider (carrier) and, indeed, it looks like all voice channels for 3g network are occupied. It explains different time it takes for the phone to be able to make calls (stop call-dropping).

It is some stuff the provider messed up with. Fixed by switching to another carrier.
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