I'm just about to move from Orange UK to Virgin Mobile UK, and have been doing a bit of setting up, pre-swap. With Virgin, calling the 222 voicemail number causes the Treo to reset about 15 seconds into the call -- every time. Orange voicemail has no such problems.

I don't have Butler or any other 'problem' apps installed, and I uninstalled TakephOne prior to the switch to Virgin.

Anyone had a similar problem or got any ideas about the cause..?