Blackberry Pearl 8130 - Manual (Page 40)

I cannot check my voice mail
If you have more than one phone number associated with your BlackBerry® device and you are trying to check your voice mail using a
shortcut key, your device calls the voice mail access number for your active phone number.
Try checking the voice mail for your alternate phone number.
I cannot join a call
If your BlackBerry® device is associated with an enterprise voice phone number, you cannot join a call that you make from or receive to
your enterprise voice phone number with a call that you make from or receive to the phone number provided by your wireless service
provider.
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