Originally Posted by BrandonPrice31
It seems to be happening with both landline and cell phones - periodically when sending or receiving a call I can't hear the person and they can't hear me. If I call them back or they call me back it works fine again?
Is this a hardware defect? I've tried taking out the battery, restarting the phone etc.
Have you rooted your device or is it factory? It's possible it could be a hardware issue but I'm leaning more towards the software. I'm going to assume this is happening with multiple calls inbound/outbound and is not a specific instance with a single caller. Leaning more towards a software issue, you have already done a battery pull and rebooted the device and this did not resolve. As an alternative option, ensure you have a backup of your device and do a factory reset:
Settings | General | Backup and Reset | Factory Reset
This should restore the device to factory settings. Test the device now to see if you exhibit the same behavior. If so, I'm assuming it would be hardware related with the software not engaging the hardware properly to handle the call. If so, you have a 1 year manufactures warranty on the device assuming you have not rooted.
Hope this helps!