Introduction

This is a PHP implementation of a simple SIP user agent (UAS / UAC). PHP SIP is not a VoIP phone. It is not possible to make "voip calls" with this tool - only SIP signalling is supported - no audio available.

Usage examples

"click to call" in a web page - see Tutorial
send SIMPLE instant messages
send Message Waiting Indication NOTIFY
send messages to any SIP destination
SIP functional testing
more...

Features

symmetric signalling
send/receive SIP message concurrently
add any header to the request
interpret and react to the response
Linux and Windows compatible

Known Bugs/Limitations

only UDP transport
not fully RFC compliant
probably more... please help improve this project and report any issues here (need to login with your Google account)

Code examples

Instant MESSAGE

<?php
require_once('PhpSIP.class.php');

try
{
  $api = new PhpSIP('172.30.30.1'); // IP we will bind to
  $api->setMethod('MESSAGE');
  $api->setFrom('sip:john@sip.domain.com');
  $api->setUri('sip:anna@sip.domain.com');
  $api->setBody('Hi, can we meet at 5pm today?');
  $res = $api->send();
  echo "res1: $res\n";
  
} catch (Exception $e) {
  
  echo $e->getMessage()."\n";
}

?>

Send NOTIFY to resync Linksys phone

<?php
require_once('PhpSIP.class.php');

try
{
  $api = new PhpSIP('172.30.30.1'); // IP we will bind to
  $api->setUsername('10000'); // authentication username
  $api->setPassword('secret'); // authentication password
  // $api->setProxy('some_ip_here'); 
  $api->addHeader('Event: resync');
  $api->setMethod('NOTIFY');
  $api->setFrom('sip:10000@sip.domain.com');
  $api->setUri('sip:10000@sip.domain.com');
  $res = $api->send();
  echo "res1: $res\n";
  
} catch (Exception $e) {
  
  echo $e->getMessage()."\n";
}

?>