<html><body bgcolor="#FFFFFF"><div>The best way to handle this is using a static trusted IP trunk rather than trying to spoof digest authentication mechanisms or fool the location service.<br><br><div>--</div><div>Alex Balashov - Principal</div><div>Evariste Systems LLC</div><div>260 Peachtree Street NW</div><div>Suite 2200</div><div>Atlanta, GA 30303</div><div>Tel: +1-678-954-0670</div><div>Fax: +1-404-961-1892</div><div>Web: <a href="http://www.evaristesys.com/"><a href="http://www.evaristesys.com/">http://www.evaristesys.com/</a></a></div></div><div><br>On Feb 6, 2011, at 9:48 AM, Graham Wooden <<a href="mailto:graham@g-rock.net">graham@g-rock.net</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div>
<font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size:11pt">Hi there,<br>
<br>
I turned up a few new sip trunk customers this past week, from which one of them was an Avaya system.<br>
The customer wasn’t able to do a username/password auth, so I set them up as a permanent entry in the location table. I am running Kamailio 1.5.5.<br>
<br>
The issue is that I am throwing back a 404 to them when they do a timer event, as they are passing sip:<a href="Unknown@my.ip.addr"><a href="mailto:Unknown@my.ip.addr">Unknown@my.ip.addr</a></a>.<br>
I don’t have a user name Unknown, hence the 404. I noticed that with the timer events from other customer’s PBXs, that they are passing sip:my.addr, from which I am giving back 200 OK.<br>
<br>
What is the best way to handle this? Just let it go or add a “Unknown” user (I don’t like the latter, really)? Calls to and from their system is fine, so right now it’s just entries in my logs – but I hate spending CPU cycles on stuff that isn’t going to benefit anyone. I sent an email back to the customer to see if maybe he can resolve it on his end, but I am doubtful on getting it resolved on his end.<br>
<br>
Thanks,<br>
<br>
-graham<br>
</span></font>
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