contacts trouble dialing letters

[droid hacker]

Hi guys, hope you can help me. In most of my contacts I have a descrptive note after the phone ( usa , nextel, private, 2nd office etc,) and my droid 854 dial it as if they were numbers, but in my contact list they appear perfect, what can I do. To make my droid recognize the as letters and also how can I put pauses and NIPs to dial the banks, I use this a lot in other phones.
D H