I've had a TG01 for about 2 weeks (UK Orange) and am already on my third handset!
When I am making a call, the people at the other end can hear popping and banging noises. I cannot hear the noises at my end during the call but have made calls to my other mobile and heard the noises myself. I have also tried my SIM card in an old Sony Ericsson Z600 and did not experience the noises so it appears to be an issue with my TG01. It seems to happen when I am at home (GPRS/GSM) but not at work (3G/HSDPA). I've tried setting the phone to GSM only mode but that doesn't help.
For this reason, Orange have exchanged the phone twice but I have found that I am still experiencing the noises with the third handset. The noise is just a loud distorted bang and happens randomly. As you might expect, it has never happened when I have been on the phone to Orange so cross-network calls may be a factor too.
I've emailed Toshiba to see if this is a known issue but Orange claim they have no other reports of this problem. The phone does this in the default “as shipped” condition so isn't related to any additional software. I've also had some of the memory card issues discussed elsewhere. Could it be related? - seems unlikely...
Has anybody out there had similar problems or know what might be causing this? Not sure I can wait for a software update but would really like to keep the TG01 (with SPB Mobile Shell of course!)