I tested this and verified that:
my $csv = Text::CSV_XS->new({allow_loose_escapes => 1,});
parses the OP's example correctly with my code using Text::CSV_XS. 
Input Line:
8,""Rat Control" <sip:+15559999999@192.168 .5.233>;tag=gK004bb052",9
Output Line:
8|"Rat Control" <sip:+15559999999@192.168 .5.233>;tag=gK004bb052|9

[download]
Apparently although the OP's CSV line is technically incorrect according to the CSV spec, some smart folks who wrote Text::CSV anticipated this and have an option for it.

Thank you Tux!

As a comment: I always use the pipe, | character when I generate "CSV" files.
Using a different character than "comma" is allowed by the spec. What is shown as the "output" line above, would be my "input" line with no need to use a complex module to parse things (in most, but not all cases). Of course we have to deal with what we get from others.. such is the nature of the beast.

In reply to Re^4: Multiple double quotes within csv by Marshall
in thread Multiple double quotes within csv by mhooper

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