Hello asterisk users,

I need to convert the CLI received according to national/international
format:

55-555-5555 to 055-555-5555 (add 0 in the beginning)
+55-55-555-5555 to +55-55-555-5555 (remains unchanged)

I put the following line in my dial plan:
exten => _X., n, Set(CALLERID(num)=${IF($[ ${CALLERID(num):0:1} =
"+"]?${CALLERID(num)}:0${CALLERID(num)})})

But I get these error messages:
[May 2 17:05:43] WARNING[1494]: ast_expr2.fl:468 ast_yyerror:
ast_yyerror(): syntax error: syntax error, unexpected ‘+’, expecting $end;
Input:
+ = “+”
^
[May 2 17:05:43] WARNING[1494]: ast_expr2.fl:472 ast_yyerror: If you have
questions, please refer to
https://wiki.asterisk.org/wiki/display/AST/Channel+Variables
[May 2 17:05:43] WARNING[1494]: func_logic.c:192 acf_if: Syntax
IF(?[
][:]) (expr must be non-null, and either
or
must be non-null)
[May 2 17:05:43] WARNING[1494]: func_logic.c:193 acf_if: In this
case, =”,
=’+55555555555′, and =’0+55555555555′

Can anyone suggest the proper syntax? I tried the + with no quotes, single
quotes ‘+’ and double quotes”+” and nothing worked.

Thanks

I need to add a semi-colon to a variable, but no matter how I quote
it, the parser ignores it and considers the semi-colon as the
beginning of a comment.
Si how do I concatenate the content of a variable to a semi-colon? I
tried surrounding it with double quotes, single quotes, using a
backslash first, a period first, to no avail.