!
! FlexFAX Dialing String Processing Rules.
!
! This file describes how to process user-specified dialing strings
! to create two items:
!
! CanonicalNumber: a unique string that is derived from all dialing
! strings to the same destination phone number.  This string is used
! by the fax server for ``naming'' the destination. 
!
! DialString: the string passed to the modem for use in dialing the
! telephone.  This string should be void of any characters that might
! confuse the modem.
!
! Adapted for local use at FAU Erlangen-Nürnberg
!
Internal        = "x"           ! internal call
Company         = 85            ! our phone prefix
Area            = 9131   	! local area code
Country         = 49 		! local country code
!
External        = 09            
LongDistance    = 0
International   = 00
Canonic         = "+"
!
INTERNAL        = "INTERNAL"
LOCAL           = "LOCAL"
LONGDISTANCE    = "LONGDISTANCE"
INTERNATIONAL   = "INTERNATIONAL"
!
WS=" 	"			! our notion of white space
!
! Convert a phone number to a canonical format:
!
!    +<country><areacode><rest>
!
! by (possibly) stripping off leading dialing prefixes for
! long distance and/or international dialing.
!
CanonicalNumber := [
#.*			=			! strip calling card stuff
[^+0-9x]+		=			! strip white space etc.
^${Internal}                                   = ${INTERNAL}
^${Company}                                    = ${INTERNAL}
^${LongDistance}${Area}${Company}              = ${INTERNAL}
^${International}${Country}${Area}${Company}   = ${INTERNAL}
^[+]${Country}${Area}${Company}                = ${INTERNAL}
!
! local calls
!
^[^0+IL]                                       = ${LOCAL}&
^${LongDistance}${Area}                        = ${LOCAL}
^${International}${Country}${Area}             = ${LOCAL}
^[+]${Country}${Area}                          = ${LOCAL}
!
! long distance & international calls
!
^${International}${Country}                    = ${LONGDISTANCE}
^${International}                              = ${INTERNATIONAL}
^${LongDistance}                               = ${LONGDISTANCE}
^[+]${Country}                                 = ${LONGDISTANCE}
^[+]                                           = ${INTERNATIONAL}
!
! now construct appropriate canonical strings
!
^${INTERNAL}      = ${Canonic}${Country}${Area}${Company}
^${LOCAL}         = ${Canonic}${Country}${Area}
^${LONGDISTANCE}  = ${Canonic}${Country}
^${INTERNATIONAL} = ${Canonic}
]
!
! Process a dialing string according to local requirements.
! These rules do only one transformation: they convert in-country
! international calls to long-distance calls.
!
DialString := [
[-${WS}.]+		=			! strip syntactic sugar
!
! internal calls
!
^${Internal}                                   = ${INTERNAL}
^${Company}                                    = ${INTERNAL}
^${LongDistance}${Area}${Company}              = ${INTERNAL}
^${International}${Country}${Area}${Company}   = ${INTERNAL}
^[+]${Country}${Area}${Company}                = ${INTERNAL}
!
! local calls
!
^[^0+IL]                                       = ${LOCAL}&
^${LongDistance}${Area}                        = ${LOCAL}
^${International}${Country}${Area}             = ${LOCAL}
^[+]${Country}${Area}                          = ${LOCAL}
!
! long distance & international calls
!
^${International}${Country}                    = ${LONGDISTANCE}
^${International}                              = ${INTERNATIONAL}
^${LongDistance}                               = ${LONGDISTANCE}
^[+]${Country}                                 = ${LONGDISTANCE}
^[+]                                           = ${INTERNATIONAL}
!
! now construct appropriate dialing strings
!
^${INTERNAL}       = 
^${LOCAL}          = ${External}
^${LONGDISTANCE}   = ${External}${LongDistance}
^${INTERNATIONAL}  = ${External}${International}
]
!
! Process a dialing string according to local requirements.
! These rules do only one transformation: they convert in-country
! international calls to long-distance calls.
!
! Produce a display number
!
DisplayNumber := [
[-${WS}.]+		=			! strip syntactic sugar
!
! internal calls
!
^${Internal}                                   = ${INTERNAL}
^${Company}                                    = ${INTERNAL}
^${LongDistance}${Area}${Company}              = ${INTERNAL}
^${International}${Country}${Area}${Company}   = ${INTERNAL}
^[+]${Country}${Area}${Company}                = ${INTERNAL}
!
! local calls
!
^[^0+IL]                                       = ${LOCAL}&
^${LongDistance}${Area}                        = ${LOCAL}
^${International}${Country}${Area}             = ${LOCAL}
^[+]${Country}${Area}                          = ${LOCAL}
!
! long distance & international calls
!
^${International}${Country}                    = ${LONGDISTANCE}
^${International}                              = ${INTERNATIONAL}
^${LongDistance}                               = ${LONGDISTANCE}
^[+]${Country}                                 = ${LONGDISTANCE}
^[+]                                           = ${INTERNATIONAL}
!
! now construct appropriate dialing strings
!
^${INTERNAL}       = ${Internal}
^${LOCAL}          =  
^${LONGDISTANCE}   = ${LongDistance}
^${INTERNATIONAL}  = ${International}
]