On the current WM Pro I'm using (the AT&T Tilt) pressing * twice coverts to a "P" and pressing three times gives a "W". This is great with the exception of our internal voicemail system which uses "**" as an escape sequence from the employee directory in order to listen to the voicemail.
It can't be done with the Pocket PC unless you preprogram the character sequence using waits between dialing the voicemail system and responding to the prompts. When ever I've tried to enter the ** manually, if I wait long enough between the characters to avoid them being converted to a pause, the voicemail system times out on the input.
