Ok, thanks for that.

Since that didn't completely rectify your issue, you should check the network signal (low signal can trigger malfunctions as you've described). Signal strength is indicated by the signal indicators on the top of the screen. The number of signal bar increases as the signal strengthens and decreases as the signal weakens. Your service provider is the best source of assistance with issues regarding network coverage.

If your signal strength is fine, you should locate the Voice Recorder via the menu. Once you're there, press 'Record' and talk for a few seconds... then try to play it back. If you can hear your recorded voice clearly, the problem is software related and should've been cleared by cycling the power (if it wasn't, the phone should be sent to Motorola for repair... or get a new phone). If you didn't hear your voice, then the phone's hardware has failed (i.e., speaker or amplifier heading into the speaker... or associated circuitry)... the end result is the same... send it to Moto for repair or get a new phone.

I hope this helps. Can I do anything else for you?

Regards,
Dan