This actually happened a few months ago with my work phone number, which I had forwarded to my cell. Within tens of minutes, my cell voicemail box was completel

This actually happened a few months ago with my work phone number, which I had forwarded to my cell. Within tens of minutes, my cell voicemail box was completely full. Luckily I just had to stop forwarding calls to my cell and disconnect my work phone (which I never really used anymore). Before I figured out it was my work number that had been 'stolen', I was talking to my cell carrier (tmobile) who basically said the only 'solution' was to get a different phone number. This would be an excellent way to DoS a competitor, for example..