socket_connect() unable to connect [111]

Hello,

We are facing the following error for one website

Warning: socket_connect() unable to connect [111]: Connection refused in /home/pakmasti/public_html/sms/ufone.php on line 45
Sock_Error: Socket was unable to bind.


The necessary code for ufone.php is as follows:
========================================================
<?php

/*Your msg*/
$idiot=" *www.domain.org*";

$address = "216.240.157.53";
$port = 5000;
$socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP);

if (!socket_connect($socket,$address,$port)) {
socket_close($socket);
die("Sock_Error: Socket was unable to bind.\n");
}


$res=socket_recv($socket,$buf,20,0);

for($i=0;$i<=strlen($buf);$i++)
{
if($i>10)
$id.=$buf[$i];
}

$d=sprintf("ID_RECIVED 0 0 0 0 %s wht",$id);


socket_write($socket,$d,strlen($d));
$msgfin=sprintf("Message MobileServer %s 0 %s %s: %s%s",$_POST['num'],$id,$_POST['nick'],$_POST['message'],$idiot);

socket_write($socket,$msgfin,strlen($msgfin));
socket_close($socket);

echo "";

?>
====================================================

I have opened the port 5000 on the server. The port is opened for the TCP and for UDP. The firewall have the access for the port 5000 and firewall is not blocking this port.

Waiting for the reply.

Sachin.