exten => _1888NXXXXXX,1,SetVar(tfnumber=${EXTEN})
exten => _1888NXXXXXX,2,Goto(tollfree|s|1)
exten => _1877NXXXXXX,1,SetVar(tfnumber=${EXTEN})
exten => _1877NXXXXXX,2,Goto(tollfree|s|1)
exten => _1866NXXXXXX,1,SetVar(tfnumber=${EXTEN})
exten => _1866NXXXXXX,2,Goto(tollfree|s|1)
exten => _1800NXXXXXX,1,SetVar(tfnumber=${EXTEN})
exten => _1800NXXXXXX,2,Goto(tollfree|s|1)

exten => s,1,EnumLookup(${tfnumber})
exten => s,2,GotoIf($[${ENUM:0:3} = IAX]?3:4)   ; SIP behind NAT not working
exten => s,3,Macro(superdial,${ENUM},,,,voip,${MAXVOIPCALLS},Johnson Engineering Consultants,519-271-9923,e164)
exten => s,4,Macro(superdial,${PSTN1}/${PSTN1PRE}${tfnumber}${PSTN1E},,,,pstn,${MAXPSTNCALLS},Johnson Engineering Consultants,519-271-9923,pstn800)