From the admin guide:
X
The X wildcard matches any single digit in the range 0 through 9.
The route pattern 9XXX routes or blocks all numbers in the range 9000 through 9999.
!
The exclamation point (!) wildcard matches one or more digits in the range 0 through 9.
The route pattern 91! routes or blocks all numbers in the range 910 through 91999999999999999999999.
?
The question mark (?) wildcard matches zero or more occurrences of the preceding digit or wildcard value.
The route pattern 91X? routes or blocks all numbers in the range 91 through 91999999999999999999999.
+
The plus sign (+) wildcard matches one or more occurrences of the preceding digit or wildcard value.
The route pattern 91X+ routes or blocks all numbers in the range 910 through 91999999999999999999999.
[ ]
The square bracket ([ ]) characters enclose a range of values.
The route pattern 813510[012345] routes or blocks all numbers in the range 8135100 through 8135105.
-
The hyphen (-) character, used with the square brackets, denotes a range of values.
The route pattern 813510[0-5] routes or blocks all numbers in the range 8135100 through 8135105.
^
The circumflex (^) character, used with the square brackets, negates a range of values. Ensure that it is the first character following the opening bracket ([).
Each route pattern can have only one ^ character.
The route pattern 813510[^0-5] routes or blocks all numbers in the range 8135106 through 8135109.
.
The dot (.) character, used as a delimiter, separates the Cisco CallManager access code from the directory number.
Use this special character, with the discard digits instructions, to strip off the Cisco CallManager access code before sending the number to an adjacent system.
Each route pattern can have only one dot (.) character.
The route pattern 9.@ identifies the initial 9 as the Cisco CallManager access code in an NANP call.
*
The asterisk (*) character can provide an extra digit for special dialed numbers.
You can configure the route pattern *411 to provide access to the internal operator for directory assistance.
#
The octothorpe (#) character generally identifies the end of the dialing sequence.
