diff --git a/conf/hooks.conf b/conf/hooks.conf
index 2f1c9ac..50e80a0 100644
--- a/conf/hooks.conf
+++ b/conf/hooks.conf
@@ -21,17 +21,17 @@ function hook_on_account_activated($account) {
 
 /** ### request_params array my contain username, domain, transport, ha1 and algo ### */
 
-function provisioning_hook_on_proxy_config($xml, $request_params) {
+function provisioning_hook_on_proxy_config(&$xml, $request_params) {
 	$xml .= '<entry name="conference_factory_uri" overwrite="true">sip:conference-factory@' . $request_params["domain"] . '</entry>';
 }
-function provisioning_hook_on_auth_info($xml, $request_params) {
+function provisioning_hook_on_auth_info(&$xml, $request_params) {
 
 }
 
-function provisioning_hook_on_additional_section($xml, $request_params) {
+function provisioning_hook_on_additional_section(&$xml, $request_params) {
 	$xml .= '<section name="sip">';
 	$xml .= '<entry name="rls_uri" overwrite="true">sips:rls@' . $request_params["domain"] . '</entry>';
 	$xml .= '</section>';
 }
 
-?>
\ No newline at end of file
+?>
diff --git a/src/xmlrpc/authentication.php b/src/xmlrpc/authentication.php
index db6bc47..a6bb28b 100644
--- a/src/xmlrpc/authentication.php
+++ b/src/xmlrpc/authentication.php
@@ -113,8 +113,11 @@ function request_authentication($realm = "sip.example.org", $username = null)
 function authenticate($auth_digest, $realm = "sip.example.org")
 {
     Logger::getInstance()->debug("Authenticate : Digest ".(print_r($auth_digest, true))." realm " . $realm);
-    // Parse the client authentication data
+    // Parse the client authentication data in 3 arrays.
+    // One containing raw auth_digest, the second containing keys and the third containing values
     preg_match_all('@(realm|username|nonce|uri|nc|cnonce|qop|response|opaque|algorithm)=[\'"]?([^\'",]+)@', $auth_digest, $a);
+
+    //Combining array of keys and array of values to get a dictionary
     $data = array_combine($a[1], $a[2]);
 
     // Get the password/hash from database
@@ -165,6 +168,19 @@ function authenticate($auth_digest, $realm = "sip.example.org")
         if ($data['response'] === $valid_response) {
             return $data['username'];
         }
+        Logger::getInstance()->debug("Digest : received username=" . $data['username']);
+        Logger::getInstance()->debug("Digest : received realm=" . $data['realm']);
+        Logger::getInstance()->debug("Digest : computed A1 hashed([username]:[realm]:[password])=" . $A1);
+        Logger::getInstance()->debug("Digest : received method=" . getenv('REQUEST_METHOD'));
+        Logger::getInstance()->debug("Digest : received uri=" . $data['uri']);
+        Logger::getInstance()->debug("Digest : computed A2 hashed([request_method]:[uri])='" . $A2);
+        Logger::getInstance()->debug("Digest : received nonce=" . $data['nonce']);
+        Logger::getInstance()->debug("Digest : received nc=" . $data['nc']);
+        Logger::getInstance()->debug("Digest : received cnonce=" . $data['cnonce']);
+        Logger::getInstance()->debug("Digest : received qop=" . $data['qop']);
+        Logger::getInstance()->debug("Digest : computed A2 hashed([request_method]:[uri])=" . $A2);
+        Logger::getInstance()->debug("Digest : expected response hashed([A1]:[nonce]:[nc]:[cnonce]:[qop]:[A2])=" . $valid_response);
+        Logger::getInstance()->debug("Digest : got instead response ([request_method]:[uri])=" . $data['response']);
     }
 
     Logger::getInstance()->error("Failed to authenticate request");
diff --git a/src/xmlrpc/provisioning.php b/src/xmlrpc/provisioning.php
index 8acb720..6b25069 100644
--- a/src/xmlrpc/provisioning.php
+++ b/src/xmlrpc/provisioning.php
@@ -30,6 +30,8 @@ include_once __DIR__ . '/authentication.php';
 $logger = Logger::getInstance();
 
 $username = isset($_GET['username']) ? $_GET['username'] : null;
+$domain = isset($_GET['domain']) ? $_GET['domain'] : SIP_DOMAIN;
+$realm = isset($_GET['domain']) ? $_GET['domain'] : AUTH_REALM;
 
 if (REMOTE_PROVISIONING_USE_DIGEST_AUTH) {
     $headers = getallheaders();
@@ -53,17 +55,17 @@ if (REMOTE_PROVISIONING_USE_DIGEST_AUTH) {
     }
 
     if (!empty($authorization)) {
-        $authentication_status = authenticate($authorization, AUTH_REALM);
+        $authentication_status = authenticate($authorization, $realm);
 
         if ($authentication_status != null) {
             Logger::getInstance()->debug("Authentication successful");
         } else {
             Logger::getInstance()->debug("Authentication failed");
-            request_authentication(AUTH_REALM, $from);
+            request_authentication($realm, $from);
         }
     } else {
         Logger::getInstance()->debug("No authentication header");
-        request_authentication(AUTH_REALM, $from);
+        request_authentication($realm, $from);
     }
 }
 
@@ -119,7 +121,7 @@ if (file_exists(REMOTE_PROVISIONING_DEFAULT_CONFIG)) {
     }
 }
 
-$domain = isset($_GET['domain']) ? $_GET['domain'] : SIP_DOMAIN;
+
 $transport = isset($_GET['transport']) ? $_GET['transport'] : REMOTE_PROVISIONING_DEFAULT_TRANSPORT;
 
 $request_params = array(
@@ -181,8 +183,6 @@ if (!empty($username)) {
 
     $xml .= '<section name="proxy_' . $proxy_config_index . '">';
     $xml .= '<entry name="reg_identity"' . (REMOTE_PROVISIONING_OVERWRITE_ALL ? ' overwrite="true"' : '') . '>&lt;sip:' . $username . '@' . $domain . '&gt;</entry>';
-    $xml .= '<entry name="reg_proxy"' . (REMOTE_PROVISIONING_OVERWRITE_ALL ? ' overwrite="true"' : '') . '>&lt;sip:' . $domain . ';transport=' . $transport . '&gt;</entry>';
-    $xml .= '<entry name="reg_route">&lt;sip:' . $domain . ';transport=' . $transport . '&gt;</entry>';
     $xml .= '<entry name="reg_sendregister"' . (REMOTE_PROVISIONING_OVERWRITE_ALL ? ' overwrite="true"' : '') . '>1</entry>';
 	$xml .= '<entry name="refkey"' . (REMOTE_PROVISIONING_OVERWRITE_ALL ? ' overwrite="true"' : '') .     '>push_notification</entry>';
 	if (get_config_value(CUSTOM_HOOKS, FALSE)) {