Why can't people hear me or why can't I hear people on my mobile handset?
Here are a few things for you to try before you contact us:
Remove any cases or protective screens from the handset
During a call, press the 'volume up' key to make sure the handset's volume is not turned down
Try turning on the speaker while on a call to see if this makes a difference
Try using a set of headphones whilst making a call to see if there's a problem with the phone's speaker