I'm hoping you guys can help me, as I'm still learning here and have looked all over: I have an iPhone 5 that obviously requires a 3.5mm TRRS plug. Meanwhile, I have a mono gaming headset (utilizes both left & right speakers) with a boom mic, and has a female 2.5mm TRS jack for connections. I've tried using a couple different 2.5mm TRS headset to 3.5mm TRRS iPhone adapters, including this one
, but the result always is that I can hear the incoming audio from the iPhone on the headset, but the iPhone continues to use its built-in speakerphone microphone instead of the boom mic on the gaming headset.
I suspect this is happening because although the TRRS plug is making contact inside the iPhone, the TRS connection on the other side isn't terminating the iPhone mic properly. I assume I would need to construct a cable that has a 3.5mm TRRS male on one end, and a 2.5mm TRS male on the other end, but I'm not clear on what the connections need to be. (again apologies in advance, as I'm still learning).