diff --git a/centreon-plugins/apps/voip/3cx/restapi/custom/api.pm b/centreon-plugins/apps/voip/3cx/restapi/custom/api.pm
index 3c3fb4e2d..b7e61acdb 100644
--- a/centreon-plugins/apps/voip/3cx/restapi/custom/api.pm
+++ b/centreon-plugins/apps/voip/3cx/restapi/custom/api.pm
@@ -194,6 +194,12 @@ sub request_api {
         warning_status => '', unknown_status => '', critical_status => '%{http_code} < 200 or %{http_code} >= 300'
     );
 
+    # Some content may be strangely returned, for example : "[{\"Category\":\"provider\",\"Count\":1}]"
+    if ($content =~ /^"(\[.*\])"$/) {
+        $content = $1;
+        $content =~ s/\\"/"/g;
+    }
+
     my $decoded;
     eval {
         $decoded = JSON::XS->new->utf8->decode($content);
@@ -240,6 +246,20 @@ sub api_system_status {
     return $status;
 }
 
+sub internal_update_checker {
+    my ($self, %options) = @_;
+    
+    my $status = $self->request_api(method => 'GET', url_path =>'/api/UpdateChecker/GetFromParams');
+    return $status;
+}
+
+sub api_update_checker {
+    my ($self, %options) = @_;
+
+    my $status = $self->internal_update_checker();
+    return $status;
+}
+
 1;
 
 __END__
diff --git a/centreon-plugins/apps/voip/3cx/restapi/mode/system.pm b/centreon-plugins/apps/voip/3cx/restapi/mode/system.pm
index d9d04ae6a..811d6a46a 100644
--- a/centreon-plugins/apps/voip/3cx/restapi/mode/system.pm
+++ b/centreon-plugins/apps/voip/3cx/restapi/mode/system.pm
@@ -117,6 +117,7 @@ sub manage_selection {
 
     my $single = $options{custom}->api_single_status();
     my $system = $options{custom}->api_system_status();
+    my $update = $options{custom}->api_update_checker();
 
     $self->{service} = {};
     foreach my $item (keys %$single) {
@@ -134,6 +135,10 @@ sub manage_selection {
         display => 'HasUnregisteredSystemExtensions', 
         health => $system->{HasUnregisteredSystemExtensions} ? 'false' : 'true',
     };
+    $self->{service}->{HasUpdatesAvailable} = {
+        display => 'HasUpdatesAvailable', 
+        health => scalar(@$update) ? 'false' : 'true',
+    };
     
     $self->{global} = {
         calls_active => $system->{CallsActive},
@@ -153,7 +158,7 @@ Check system health
 
 =item B<--unknown-status>
 
-Set warning threshold for status.
+Set unknown threshold for status.
 Can used special variables like: %{health}, %{display}
 
 =item B<--warning-status>