<p>Duplicate transport in Contact header when "server_address" not set for presence module.</p>
<p>Example:</p>
<pre><code>T 172.25.37.161:5060 -> 172.25.16.1:60517 [AP]
NOTIFY sip:294ee820-3268-11e3-8c04-005056be2a54@172.25.16.1:5060;transport=tcp
SIP/2.0.
Via: SIP/2.0/TCP 172.25.37.161:5060;branch=z9hG4bKa382.218fc614.0.
To: <sip:294ee820-3268-11e3-8c04-005056be2a54@domain>;tag=1807462242.
From: <sip:1400@domain>;tag=3f1e5c171f2b7ab605dc3178f992bbc2-8d7f.
CSeq: 1 NOTIFY.
Call-ID: 1717825494-5060-2@BHC.CF.BG.B.
Max-Forwards: 70.
Content-Length: 145.
User-Agent: OpenSIPS (1.10.1-tls (x86_64/linux)).
Event: dialog.
Contact: <sip:172.25.37.161:5060;transport=tcp;transport=tcp>.
Subscription-State: active;expires=300.
Content-Type: application/dialog-info+xml.
.
<?xml version="1.0"?>
<dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="0" state="full" entity="sip:1400@domain"/>
T 172.25.16.1:60517 -> 172.25.37.161:5060 [AP]
SIP/2.0 481 Subscription Does Not Exist.
Via: SIP/2.0/TCP 172.25.37.161:5060;branch=z9hG4bKa382.218fc614.0.
From: <sip:1400@domain>;tag=3f1e5c171f2b7ab605dc3178f992bbc2-8d7f.
To: <sip:294ee820-3268-11e3-8c04-005056be2a54@domain>;tag=1807462242.
Call-ID: 1717825494-5060-2@BHC.CF.BG.B.
CSeq: 1 NOTIFY.
Supported: replaces, path, timer.
User-Agent: Grandstream GXP2124 1.0.6.7.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE, MESSAGE.
Content-Length: 0.
</code></pre>
<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br>Reply to this email directly or <a href="https://github.com/OpenSIPS/opensips/issues/290">view it on GitHub</a>.<img alt="" height="1" src="https://github.com/notifications/beacon/5479561__eyJzY29wZSI6Ik5ld3NpZXM6QmVhY29uIiwiZXhwaXJlcyI6MTcyMjk3MDc4NiwiZGF0YSI6eyJpZCI6MzkwMDA5NzF9fQ==--f5d5fbd2df6fb7b7a56f473176f686ea170552c6.gif" width="1" /></p>