I got a new iPhone last weekend and have a problem: why can’t people hear me on the other end of the phone when I call them? Any tips on what the cause could be?
Assuming everything is actually OK with your phone then I had same problem.
I read on another post it is an issue with Apple's attempt at noise cancelation when making calls when background noise is present. It was suggested to disable noise cancellation by enabling hearing aid mode (under General-->Assesibilty). They only down side is it makes you enable bluetooth and amplifies your handset volume a bit. I tested it with several people and they all noted how much better they could hear and understand me.
Would do as falconbridge says: "Although it may be a more complex issue, I would try the Voice Memos app to see if the mic works or not." If your device does not register sound through that app it's likely that your microphone is bad.
- If it's a new phone bought directly from an Apple Store I would take it to them and you will most likely get a new phone if it clearly isn't your fault.
- If you do not get a new phone I suggest calling http://www.iCracked.com or any other local repair store
On the back of the phone is the camera, the flash, and in between is a little pin hole
That pin hole is supposed to receive outside intruding noise, and filters that noise out of the mike where you talk.
Trouble is, your own voice travels up the back of the phone case, and starts to filter your own voice out - people cant hear you.
I filled mine with linseed glazing putty
Sounds like the microphone has gone. I had this problem when I purchased my IPhone from Carphone Warehouse. I took it back and their Geek Squad repaired it for me.