<div dir="ltr">Hi,<br><br>With Opensips is there a way to manipulate the SIP headers of a messages that are generated locally by Opensips. See the example below.<br><br>--------------------------------------------<br>ACK <a href="http://sip:0370103204@192.168.100.37:5060">sip:0370103204@192.168.100.37:5060</a> SIP/2.0<br>Via: SIP/2.0/UDP 192.168.100.74:5060;branch=z9hG4bK5094.3ee05403.1<br>From:&lt;<a href="mailto:sip%3A0370103401@xxxvoip.com">sip:0370103401@xxxvoip.com</a>&gt;;tag=1740643510<br>Call-ID: <a href="mailto:641613075@192.168.100.38">641613075@192.168.100.38</a><br>To:&lt;<a href="http://sip:0370103204@192.168.100.37:5060">sip:0370103204@192.168.100.37:5060</a>&gt;;tag=1994410995-1432625097305;<br>CSeq: 1 ACK<br>Max-Forwards: 70<br>User-Agent: OpenSIPS (2.1.0 (x86_64/linux))<br>Content-Length: 0<br>--------------------------------------------<br><br>Thanks,<br>Ping Han</div>