sipserver1

<?php

$msg = 'SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.0.0.3:5060;branch=z9hG4bKee7d3e6b5e749bd222d18545bab088d9;received=188.88.88.8;rport=16918
From: "881881881" <sip:881881881@10.0.0.10>;tag=2162791771
To: "881881881" <sip:881881881@10.0.0.10>;tag=gK0c8dcc10
Call-ID: 3555555555@10_0_0_3
CSeq: 1 REGISTER
User-Agent: CommsMundi Softswitch
WWW-Authenticate: Basic
Content-Length: 0
';

if(!($sock = socket_create(AF_INET, SOCK_DGRAM, 0))) {
    $errorcode = socket_last_error();
    $errormsg = socket_strerror($errorcode);

    die("Couldn't create socket: [{$errorcode}] {$errormsg}" . PHP_EOL);
}

echo "Socket created \n";

if(!socket_bind($sock, '10.0.0.10' , 12345)) {
    $errorcode = socket_last_error();
    $errormsg = socket_strerror($errorcode);

    die("Could not bind socket : [{$errorcode}] {$errormsg}" . PHP_EOL);
}

echo 'Socket bound' . PHP_EOL;

while(1) {
    echo PHP_EOL . 'Waiting...' . PHP_EOL;

    $r = socket_recvfrom($sock, $buf, 4096, 0, $remote_ip, $remote_port);
    echo '<' . substr($buf, 0, 15) . '... (' . $r . ')' . PHP_EOL;

    $s = socket_sendto($sock, $msg, strlen($msg), 0 , $remote_ip , $remote_port);
    echo '>' . substr($msg, 0, 15) . '... (' . $s . ')' . PHP_EOL;
}

socket_close($sock);
?>