Was wondering if anyone can help me currently I only accept 3 cvv numbers and I need to chage this to 4 but I can't find any where online how to put a range in this statement.
exten => s,n,GotoIf($[${LEN(${vrCC_CCV})}=3]?wait:cc_ccvinv)
Visa/Mastercard are fine with 3 didits but American Express requires the four digits on front of the card.
Any assistance would be greatful.
Like any other language asterisk support AND/OR in expressions.
https://www.voip-info.org/asterisk-cmd-gotoif/
Example 2
; Are the first three digits of the returned value of ${ENUM} are
; either SIP or IAX? If not, we ignore and pass to normal
; dialing path at priority 4.
;
exten => _011X.,2,GotoIf($[$["${ENUM:0:3}" = "SIP"] | $["${ENUM:0:3}" = "IAX"]]?3:4)
More info about expressions in dialplan
