diff --git a/composer.json b/composer.json
index 3edff5c..71e337c 100644
--- a/composer.json
+++ b/composer.json
@@ -1,38 +1,34 @@
 {
-  "name": "bandwidth/sdk",
-  "type": "library",
-  "description": "Bandwidth's set of APIs",
-  "keywords": [
-    "bandwidth",
-    "API",
-    "SDK"
-  ],
-  "homepage": "https://github.com/bandwidth/php-sdk",
-  "license": "MIT",
-  "authors": [
-    {
-      "name": "APIMatic SDK Generator",
-      "email": "support@apimatic.io",
-      "homepage": "https://apimatic.io",
-      "role": "API Tool"
+    "name": "bandwidth/sdk",
+    "type": "library",
+    "description": "Bandwidth's set of APIs",
+    "keywords": ["bandwidth","API","SDK"],
+    "homepage": "https://apimatic.io",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "APIMatic SDK Generator",
+            "email": "support@apimatic.io",
+            "homepage": "https://apimatic.io",
+            "role": "API Tool"
+        }
+    ],
+    "require": {
+        "ext-SimpleXML": "*",
+        "php": ">=5.4.0",
+        "ext-curl": "*",
+        "ext-json": "*",
+        "ext-mbstring": "*",
+        "mashape/unirest-php": "~3.0.1",
+        "apimatic/jsonmapper": "~1.3.0"
+    },
+    "require-dev": {
+        "squizlabs/php_codesniffer": "^2.7",
+        "phan/phan": "^1.2"
+    },
+    "autoload": {
+        "psr-4": {
+            "BandwidthLib\\": "src/"
+        }
     }
-  ],
-  "require": {
-    "ext-SimpleXML": "*",
-    "php": ">=5.4.0",
-    "ext-curl": "*",
-    "ext-json": "*",
-    "ext-mbstring": "*",
-    "mashape/unirest-php": "~3.0.1",
-    "apimatic/jsonmapper": "~1.3.0"
-  },
-  "require-dev": {
-    "squizlabs/php_codesniffer": "^2.7",
-    "phan/phan": "^1.2"
-  },
-  "autoload": {
-    "psr-4": {
-      "BandwidthLib\\": "src/"
-    }
-  }
 }
\ No newline at end of file
diff --git a/src/Controllers/BaseController.php b/src/Controllers/BaseController.php
index dfe474f..5897069 100644
--- a/src/Controllers/BaseController.php
+++ b/src/Controllers/BaseController.php
@@ -22,7 +22,7 @@ class BaseController
      * User-agent to be sent with API calls
      * @var string
      */
-    const USER_AGENT = 'php-sdk-refs/tags/php2.11.1';
+    const USER_AGENT = 'php-sdk-refs/tags/phpold2.13.3';
 
     /**
      * HttpCallBack instance associated with this controller
diff --git a/src/Messaging/Controllers/APIController.php b/src/Messaging/Controllers/APIController.php
index fb91840..27afbf0 100644
--- a/src/Messaging/Controllers/APIController.php
+++ b/src/Messaging/Controllers/APIController.php
@@ -139,7 +139,8 @@ public function getMedia(
         $_queryBuilder = APIHelper::appendUrlWithTemplateParameters($_queryBuilder, array (
             'userId'  => $userId,
             'mediaId' => $mediaId,
-            ));
+            ), false
+        );
 
         //validate and preprocess url
         $_queryUrl = APIHelper::cleanUrl($this->config->getBaseUri(Servers::MESSAGINGDEFAULT) . $_queryBuilder);
diff --git a/src/Voice/Bxml/StartGather.php b/src/Voice/Bxml/StartGather.php
new file mode 100644
index 0000000..5778346
--- /dev/null
+++ b/src/Voice/Bxml/StartGather.php
@@ -0,0 +1,88 @@
+<?php
+/**
+ * StartGather.php
+ *
+ * Implementation of the BXML StartGather tag
+ *
+ *  * @copyright Bandwidth INC
+ */
+
+namespace BandwidthLib\Voice\Bxml;
+
+require_once "Verb.php";
+require_once "SpeakSentence.php";
+require_once "PlayAudio.php";
+
+class StartGather extends Verb {
+
+    /**
+     * Sets the username attribute for StartGather
+     *
+     * @param string $username The username for http authentication for the gather callback
+     */
+    public function username($username) {
+        $this->username = $username;
+    }
+
+    /**
+     * Sets the password attribute for StartGather
+     *
+     * @param string $password The password for http authentication for the gather callback
+     */
+    public function password($password) {
+        $this->password = $password;
+    }
+
+    /**
+     * Sets the dtmfUrl attribute for StartGather
+     *
+     * @param string $dtmfUrl The url to receive the dtmf callback 
+     */
+    public function dtmfUrl($dtmfUrl) {
+        $this->dtmfUrl = $dtmfUrl;
+    }
+
+    /**
+     * Sets the dtmfMethod attribute for StartGather
+     *
+     * @param string $dtmfMethod The http method to send the dtmf callback 
+     */
+    public function dtmfMethod($dtmfMethod) {
+        $this->dtmfMethod = $dtmfMethod;
+    }
+
+    /**
+     * Sets the tag attribute for StartGather
+     *
+     * @param string $tag A custom string to be included in callbacks 
+     */
+    public function tag($tag) {
+        $this->tag = $tag;
+    }
+
+    public function toBxml($doc) {
+        $element = $doc->createElement("StartGather");
+
+        if(isset($this->username)) {
+            $element->setAttribute("username", $this->username);
+        }
+
+        if(isset($this->password)) {
+            $element->setAttribute("password", $this->password);
+        }
+
+        if(isset($this->tag)) {
+            $element->setAttribute("tag", $this->tag);
+        }
+
+        if(isset($this->dtmfUrl)) {
+            $element->setAttribute("dtmfUrl", $this->dtmfUrl);
+        }
+
+        if(isset($this->dtmfMethod)) {
+            $element->setAttribute("dtmfMethod", $this->dtmfMethod);
+        }
+
+        return $element;
+    }
+}
diff --git a/src/Voice/Bxml/StopGather.php b/src/Voice/Bxml/StopGather.php
new file mode 100644
index 0000000..4de839f
--- /dev/null
+++ b/src/Voice/Bxml/StopGather.php
@@ -0,0 +1,20 @@
+<?php
+/**
+ * StopGather.php
+ *
+ * Implementation of the BXML StopGather verb
+ *
+ *  * @copyright Bandwidth INC
+ */
+  
+namespace BandwidthLib\Voice\Bxml;
+
+require_once "Verb.php";
+
+class StopGather extends Verb {
+
+    public function toBxml($doc) {
+        $element = $doc->createElement("StopGather");
+        return $element;
+    }
+}
diff --git a/src/WebRtc/Utils/WebRtcTransfer.php b/src/WebRtc/Utils/WebRtcTransfer.php
index 056f768..86debd0 100644
--- a/src/WebRtc/Utils/WebRtcTransfer.php
+++ b/src/WebRtc/Utils/WebRtcTransfer.php
@@ -11,6 +11,6 @@
 
 class WebRtcTransfer {
     public static function generateBxml($deviceToken, $sipUri = "sip:sipx.webrtc.bandwidth.com:5060") {
-        return '<?xml version="1.0" encoding="UTF-8"?><Transfer><SipUri uui="' . $deviceToken . ';encoding=jwt">' . $sipUri . '</SipUri></Transfer>';
+        return '<?xml version="1.0" encoding="UTF-8"?><Response><Transfer><SipUri uui="' . $deviceToken . ';encoding=jwt">' . $sipUri . '</SipUri></Transfer></Response>';
     }
 }