PHP SIP User Agent class

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

Code examples

Instant MESSAGE

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

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"; }

?>