Not an answer, but, when writing command line scripts I find using the core module Getopt::Long to parse options much more flexible (and easier to debug). For your script:

use Getopt::Long;
my (
    $phoneip,
    $user,
    $Address,
    $passcode,
);
GetOptions(
    'phoneip=s'  => \$phoneip,
    'user=s'     => \$user,
    'Address=s'  => \$Address,
    'passcode=s' => \$passcode,
);
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You would then call it with the arguments in any order, and you can easily add options:

perl script.pl --user username --phoneip 201.34.56.78
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