I'm assuming you have a voicemail mailbox w/ Alternate fax extension. If so, Callxpress passes a 9 digit to the Rightfax server. The Rightfax server has it's own 9 digit in either the boardserver module and/or a Rightfax dial rule entry. You can fix this by creating a Rightfax dialing rule that matches 9* (Nine and any number of digits afterwards) and then REMOVES the first digit.