Tidy up

Remove unused variables
Close socket if not using

Sccp_manager.inc/aminterface/Response.class.php

@@ -23,7 +23,6 @@ abstract class Response extends IncomingMessage
     {
         parent::__construct($rawContent);
         $this->_events = array();
-        $this->_eventsCount = 0;
         $this->_completed = $this->isSuccess();
     }
 

Sccp_manager.inc/srvinterface.class.php

@@ -52,11 +52,17 @@ class srvinterface {
             }
         }
         if ($this->aminterface->status()) {
-            // Ami is not hard disabled in Amiinterface __construct 54.
+            // Ami is not hard disabled in Amiinterface __construct line 54.
             if ($this->aminterface->open()) {
                 // Can open a connection. Now check compatibility with chan-sccp.
                 // will return true if compatible.
-                $this->ami_mode = $this->get_compatible_sccp(true)[1];
+                if (!$this->get_compatible_sccp(true)[1]) {
+                    // Close the open socket as will not use
+                    $this->aminterface->close();
+                } else {
+                    // is compatible so enable AMI mode
+                    $this->ami_mode = true;
+                }
             }
         }
     }

install.php

@@ -18,7 +18,6 @@ global $version;
 global $srvinterface;
 global $mobile_hw;
 $mobile_hw = '0';
-global $useAmiInterface;
 
 $class = "\\FreePBX\\Modules\\Sccp_manager\\srvinterface";
 if (!class_exists($class, false)) {