diff --git a/Build.PL b/Build.PL
index 39a3f9c9c9..f2b96ae23a 100644
--- a/Build.PL
+++ b/Build.PL
@@ -47,6 +47,7 @@ my $builder = Local::Module::Build->new(
         'DateTime::Format::ISO8601' => 0,
         'DateTime::Format::RFC3339' => 0,
         'DBIx::Class::ResultSet::RecursiveUpdate' => '0.30',
+        'Digest::MD5' => 0,
         'Email::Sender::Simple' => 0,
         'Email::Sender::Transport::SMTP' => 0,
         'Email::Valid' => 0,
diff --git a/lib/NGCP/Panel/Utils/DeviceBootstrap.pm b/lib/NGCP/Panel/Utils/DeviceBootstrap.pm
index 6447089dda..dc9665f4f4 100644
--- a/lib/NGCP/Panel/Utils/DeviceBootstrap.pm
+++ b/lib/NGCP/Panel/Utils/DeviceBootstrap.pm
@@ -7,16 +7,6 @@ use NGCP::Panel::Utils::DeviceBootstrap::VendorRPC;
 use NGCP::Panel::Utils::DeviceBootstrap::Panasonic;
 use NGCP::Panel::Utils::DeviceBootstrap::Yealink;
 
-#NGCP::Panel::Utils::DeviceBootstrap::RPC params =>
-    #$params = {
-    #    redirect_uri
-    #    redirect_uri_params
-    #    mac
-    #    mac_old (optional)
-    #    c for log, config sync uri from config
-    #    credentials => {user=>, password=>}
-    #};
-
 sub dispatch{
     my($c, $action, $fdev, $old_identifier) = @_;
     
diff --git a/lib/NGCP/Panel/Utils/DeviceBootstrap/VendorRPC.pm b/lib/NGCP/Panel/Utils/DeviceBootstrap/VendorRPC.pm
index 8906f23b3b..94325f242d 100644
--- a/lib/NGCP/Panel/Utils/DeviceBootstrap/VendorRPC.pm
+++ b/lib/NGCP/Panel/Utils/DeviceBootstrap/VendorRPC.pm
@@ -27,14 +27,18 @@ sub redirect_server_call{
     my $c = $self->params->{c};
     $self->init_content_params();
     $c->log->debug(Dumper ($self->content_params));
-    my($content,$response_value);
-    if('unregister' eq $action){
-        $content = $self->unregister_content();
-    }elsif('register' eq $action){
-        $content = $self->register_content();
+    my($content,$response_value,$ret);
+    my $method = $action.'_content';
+    if($self->can($method)){
+        $content = $self->$method();
+    }else{
+        $ret = "Unknown method: $action";
     }
-    $response_value = $self->rpc_https_call($content);
-    return $self->extract_response_description($response_value);
+    if($content){
+        $response_value = $self->rpc_https_call($content);
+        $ret = $self->extract_response_description($response_value);
+    }
+    return $ret;
 }
 
 sub rpc_https_call{
diff --git a/lib/NGCP/Panel/Utils/DeviceBootstrap/Yealink.pm b/lib/NGCP/Panel/Utils/DeviceBootstrap/Yealink.pm
index b0d5a7c121..73e4b312a0 100644
--- a/lib/NGCP/Panel/Utils/DeviceBootstrap/Yealink.pm
+++ b/lib/NGCP/Panel/Utils/DeviceBootstrap/Yealink.pm
@@ -2,6 +2,7 @@ package NGCP::Panel::Utils::DeviceBootstrap::Yealink;
 
 use strict;
 use Moose;
+use Digest::MD5 qw/md5_hex/;
 extends 'NGCP::Panel::Utils::DeviceBootstrap::VendorRPC';
 
 has 'rpc_server_params' => (
@@ -19,6 +20,11 @@ has 'unregister_content' => (
     isa => 'Str',
     accessor => '_unregister_content',
 );
+has 'add_server_content' => (
+    is => 'rw',
+    isa => 'Str',
+    accessor => '_add_server_content',
+);
 sub rpc_server_params{
     my $self = shift;
     my $cfg  = {
@@ -34,7 +40,7 @@ sub rpc_server_params{
 
 sub register_content {
     my $self = shift;
-    $self->{register_content} = "<?xml version='1.0' encoding='UTF-8'?>
+    $self->{register_content} ||= "<?xml version='1.0' encoding='UTF-8'?>
 <methodCall>
 <methodName>redirect.registerDevice</methodName>
 <params>
@@ -42,7 +48,7 @@ sub register_content {
 <value><string>".$self->content_params->{mac}."</string></value>
 </param>
 <param>
-<value><string><![CDATA[".$self->content_params->{uri}."]]></string></value>
+<value><string><![CDATA[".$self->content_params->{server_name}."]]></string></value>
 </param>
 <param>
 <value><string>1</string></value>
@@ -53,7 +59,7 @@ sub register_content {
 
 sub unregister_content {
     my $self = shift;
-    $self->{unregister_content} =  "<?xml version='1.0' encoding='UTF-8'?>
+    $self->{unregister_content} ||=  "<?xml version='1.0' encoding='UTF-8'?>
 <methodCall>
 <methodName>redirect.deRegisterDevice</methodName>
 <params>
@@ -64,6 +70,26 @@ sub unregister_content {
 </methodCall>";
     return $self->{unregister_content};
 }
+sub add_server_content {
+    my $self = shift;
+    $self->{add_server_content} ||=  "<?xml version='1.0' encoding='UTF-8'?>
+<methodCall>
+<methodName>redirect.addServer</methodName>
+<params>
+<param>
+<value>
+<string><![CDATA[".$self->content_params->{uri_server_name}."]]></string>
+</value>
+</param>
+<param>
+<value>
+<string><![CDATA[".$self->content_params->{uri}."]]></string>
+</value>
+</param>
+</params>
+</methodCall>";
+    return $self->{add_server_content};
+}
 
 sub parse_rpc_response{
     my($self,$rpc_response) = @_;
@@ -80,8 +106,11 @@ sub extract_response_description{
     }
 }
 
-sub process_uri{
+sub uri2server_name{
     my($self,$uri) = @_;
+    #http://stackoverflow.com/questions/4826403/hash-algorithm-with-alphanumeric-output-of-20-characters-max
+    
+    
     return $uri;
 }
 1;