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 (need to login with your Google account)

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"; }

?> ```