Specifications

PA-001011-03-04 Aastra July 2014
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 ‘User-Agent’ providing information on the characteristics of the phone (type, MAC address,
firmware),
 ‘X-Aastra-ExpMod1’ providing information on the expansion module 1 if present,
 ‘X-Aastra-ExpMod2’ providing information on the expansion module 2 if present,
 ‘X-Aastra-ExpMod3’ providing information on the expansion module 3 if present,
 ‘Accept-Language’ providing information on the language used on the phone.
Example:
User-Agent: Aastra57i MAC:00-08-5D-19-94-B7 V:2.3.1.26-SIP
Accept-Language: en
X-Aastra-ExpMod1: 560M
X-Aastra-ExpMod2: 536M
4.16.1 User-Agent
The User-Agent header includes:
 The type of phone
 The MAC address of the phone
 The firmware version of the phone
Usually, the HTTP server is able to retrieve the User Agent parameters. The Aastra SIP phones
send the following string for the User-Agent.
Phone_Model[space]MAC:-XX-XX-XX-XX-XX-XX[space]V:Version
This allows the application to adapt to the type of phone it is dealing with but also allows to design
a single application to provide XML (for the phones) and HTML (for a web browser).
The following source code is a php example that can be used to decode the User-Agent header
sent by an Aastra phone.
function Aastra_decode_HTTP_header()
{
$user_agent=$_SERVER["HTTP_USER_AGENT"];
if(stristr($user_agent,"Aastra"))
{
$value=preg_split("/ MAC:/",$user_agent);
$end=preg_split("/ /",$value[1]);
$value[1]=preg_replace("/\-/","",$end[0]);
$value[2]=preg_replace("/V:/","",$end[1]);
}
else
{
$value[0]="Unknown";
$value[1]="NA";
$value[2]="NA";
}
$header[‘model’]=$value[0];