<p>The formatting was messed up by github :(<br>
Here's the correct header that failed to be parsed</p>

<pre><code>$ct=["test" &lt;sip:test@192.168.2.113:34184;transport=TCP;ob&gt;;reg-id=1;+sip.instance="&lt;urn:uuid:ed409b05-1872-36ee-8ba0-865cb642250b&gt;"]
$var(ct_nameaddr_params)=[reg-id=1;+sip.instance="&lt;urn:uuid:ed409b05-1872-36ee-8ba0-865cb642250b&gt;]
</code></pre>

<p>The header is properly formated:</p>

<pre><code>Contact:"test" &lt;sip:test@192.168.2.113:34184;transport=TCP;ob&gt;;reg-id=1;+sip.instance="&lt;urn:uuid:ed409b05-1872-36ee-8ba0-865cb642250b&gt;"
</code></pre>

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