<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Hi Brett,<br>
<br>
On 06/30/2011 05:40 PM, Brett Nemeroff wrote:
<blockquote
cite="mid:BANLkTinWxYmnnuXO+bT52+Mxv1hZtRA+6Q@mail.gmail.com"
type="cite">
<div class="gmail_quote">On Thu, Jun 30, 2011 at 9:12 AM, Anca
Vamanu <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:anca.vamanu@gmail.com">anca.vamanu@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
A new feature has been added to OpenSIPS trunk and will be
present in the 1.7 release: topology hiding functionality
based on dialog module.<br>
It is a lightweight topology hiding built as an extension of
dialog module. It does not change the dialog elements (to tag,
from tag, callid), but only strips and restores the headers
that contain topology information (Via, Record-Route, Route
and Contact headers).<br>
</blockquote>
<div><br>
</div>
<div>Anca,</div>
<div>This sounds really neat! Thanks! Question, call-ids
frequently contain source IPs in them. Is there anyway to
re-write those?</div>
</div>
</blockquote>
This topology hiding approach is based on dialog continuity - dialog
is not change (opensips acts as proxy, not like B2BUA) and some
information (Routes, contact, VIA) from messages are hidden.<br>
<br>
Nevertheless, as everything is dialog based, the dialog must not be
affected, so dialog elements cannot be changed (callid, tags).<br>
<br>
Regards,<br>
Bogdan<br>
<pre class="moz-signature" cols="72">--
Bogdan-Andrei Iancu
OpenSIPS solutions and "know-how"</pre>
</body>
</html>