Aastra SIP 53I Administrator's Manual page 706

IP Phone Administrator Guide
Sample Configuration Files
# As you dial a number on the phone, the phone will initiate a call
# when one of the following conditions are meet:
#
# (1) The entered number is an exact match in the dial plan
# (2) The "#" symbol has been pressed
# (3) A timeout occurs
#
# The dial plan is a regular expression that supports the following
# syntax:
#
# 0,1,2,3,4,5,6,7,8,9,*,# : matches the keypad symbols
# x
# +
#
# []
#
#
# ()
# |
#
#
# If the dialled number doesn't match the dial plan then the call
# is rejected.
sip digit timeout: 3
# Example dial plans
sip dial plan: "x+#|xx+*"
#sip dial plan: [01]xxx|[2-8]xxxx|91xxxxxxxxxx
D-18
: matches any digit (0...9)
: matches 0 or more repetitions of the
: previous expression
: matches any number inside the brackets
: can be used with a "-" to represent a
: range
: expression grouping
: either or
# set the inter-digit timeout in seconds
# this is the default dial string, note
# that is must be quoted since it contains
# a '#' character
# accecpt any 4 digit number beginning
41-001160-00, Release 2.1, Rev 04