I was able to get it done using below.. Is this because reference is scalar? 
foreach $callid (sort keys %data1) {
     my @fields = @{$data1{$callid}};
     for my $element (@fields) {
     $element =~ s/\s+//g;
     print "$element";
     }  
     print "\n";
}

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In reply to Re^7: multiple values per key by convenientstore
in thread multiple values per key by convenientstore

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