Hello, this is my first post here. I have been a linux user for may years but this is my first foray into a mobile distro. I have to say, I love this OS and am very excited to see how this project grows.

I'm having one issue that is stifling me. I have installed UT 16.04 on a OnePlus One and while it is operating beautifully, when I pop in a SIM and try to make a call everything works except the person I'm speaking to cannot hear me. If I switch to speaker phone they can hear me fine. I've tested the voice recorder app and it does not pick up any audio either. Is there a software issue that could be causing this or does this seem more like a hardware problem? I've found there the OPO's have reported this exact issue in the past and the resolution was software, but those were not running UT.

One solution I've seen was to disable TTY, but I cannot find a setting for that anywhere in UT, has anyone else run into this problem?