Hi guys,
There is no CIC problem at all, I thought CIC can cause one way communications, I saw this before, the problem i have got here is in my network, you call somebody then may be you chat for seconds and then silence will start, if you wait you can hear his voice again or silence will continue, based on my experience i don’t think this is a CIC problem.
This problem usually happens in our largest city. We have got a lot of adjacent frequancies not the BCCH but a lot of adjacent TCH frequancies, Therefore can this be the cause?