diff --git a/lib/NGCP/Panel/Controller/API/VoicemailRecordingsItem.pm b/lib/NGCP/Panel/Controller/API/VoicemailRecordingsItem.pm
index f62d77934d..d5838bfb37 100644
--- a/lib/NGCP/Panel/Controller/API/VoicemailRecordingsItem.pm
+++ b/lib/NGCP/Panel/Controller/API/VoicemailRecordingsItem.pm
@@ -51,7 +51,7 @@ sub GET :Allow {
         my $filename = $sr->{get_voicemail_filename}($c,$item,$format);
         $c->response->header ('Content-Disposition' => 'attachment; filename="'.$filename.'"');
         $c->response->content_type($sr->{get_voicemail_content_type}($c,$format));
-        $c->response->body($ss->{transcode_data}($item->recording,'WAV',uc($format)));
+        $c->response->body(${$ss->{transcode_data}(\$item->recording, 'WAV', uc($format))});
         return;
     }
     return;
diff --git a/lib/NGCP/Panel/Controller/Sound.pm b/lib/NGCP/Panel/Controller/Sound.pm
index 27a4573741..b1f9a4b2fa 100644
--- a/lib/NGCP/Panel/Controller/Sound.pm
+++ b/lib/NGCP/Panel/Controller/Sound.pm
@@ -683,12 +683,12 @@ sub handles_download :Chained('handles_base') :PathPart('download') :Args(0) {
     my $file = $c->stash->{file_result};
     my $filename = $file->filename;
     $filename =~ s/\.\w+$/.wav/;
-    my $data;
+    my $data_ref;
 
     if($file->codec ne 'WAV') {
         try {
-            $data = NGCP::Panel::Utils::Sounds::transcode_data(
-                $file->data, $file->codec, 'WAV');
+            $data_ref = NGCP::Panel::Utils::Sounds::transcode_data(
+                \$file->data, $file->codec, 'WAV');
         } catch($e) {
             NGCP::Panel::Utils::Message::error(
                 c     => $c,
@@ -698,12 +698,12 @@ sub handles_download :Chained('handles_base') :PathPart('download') :Args(0) {
             NGCP::Panel::Utils::Navigation::back_or($c, $c->stash->{handles_base_uri});
         }
     } else {
-        $data = $file->data;
+        $data_ref = \$file->data;
     }
 
     $c->response->header ('Content-Disposition' => 'attachment; filename="' . $filename . '"');
     $c->response->content_type('audio/x-wav');
-    $c->response->body($data);
+    $c->response->body($$data_ref);
     return;
 }
 
diff --git a/lib/NGCP/Panel/Controller/Subscriber.pm b/lib/NGCP/Panel/Controller/Subscriber.pm
index da9fb6ebde..e76b2e05b0 100644
--- a/lib/NGCP/Panel/Controller/Subscriber.pm
+++ b/lib/NGCP/Panel/Controller/Subscriber.pm
@@ -3998,12 +3998,11 @@ sub play_voicemail :Chained('voicemail') :PathPart('play') :Args(0) {
     my ($self, $c) = @_;
 
     my $file = $c->stash->{voicemail};
-    my $recording = $file->recording;
-    my $data;
+    my $data_ref;
 
     try {
-        $data= NGCP::Panel::Utils::Sounds::transcode_data(
-            $recording, 'WAV', 'WAV');
+        $data_ref = NGCP::Panel::Utils::Sounds::transcode_data(
+            \$file->recording, 'WAV', 'WAV');
     } catch ($e) {
         NGCP::Panel::Utils::Message::error(
             c     => $c,
@@ -4019,7 +4018,7 @@ sub play_voicemail :Chained('voicemail') :PathPart('play') :Args(0) {
     my $filename = NGCP::Panel::Utils::Subscriber::get_voicemail_filename($c,$file);
     $c->response->header('Content-Disposition' => 'attachment; filename="'.$filename.'"');
     $c->response->content_type('audio/x-wav');
-    $c->response->body($data);
+    $c->response->body($$data_ref);
 }
 
 sub delete_voicemail :Chained('voicemail') :PathPart('delete') :Args(0) {
diff --git a/lib/NGCP/Panel/Utils/Sounds.pm b/lib/NGCP/Panel/Utils/Sounds.pm
index 22417c16b1..5be49dff05 100644
--- a/lib/NGCP/Panel/Utils/Sounds.pm
+++ b/lib/NGCP/Panel/Utils/Sounds.pm
@@ -49,12 +49,12 @@ sub transcode_file {
 sub transcode_data {
     my ($data, $source_codec, $target_codec) = @_;
     my ($fh, $filename) = tempfile;
-    print $fh $data;
+    print $fh (ref $data ? $$data : $data);
     close $fh;
     my $out = transcode_file($filename, $source_codec, $target_codec);
     unlink $filename; 
 
-    return $out;
+    return \$out;
 }
 
 sub stash_soundset_list {