Hello,<div><br></div><div>The phone shouldn't be sending the IP address, it should be using the hostname you specified.</div><div><br></div><div>I actually did an article, albeit about a NAT issue, on the Cisco 7940 which goes into detail about the SIP packets going to and from the server [1]. As you can see from this article, the phone is sending the hostname in the To field.</div>
<div><br></div><div>Therefore, this could either be a dodgy firmware or some config option you have set wrong.</div><div><br></div><div>Can you please give us the following;</div><div><br></div><div>* FS SIP trace logs showing the Cisco phone during registration and/or call state</div>
<div>* Cisco phone config (this can be extracted using the telnet server if you are not using TFTP)</div><div><br></div><div>Hope this helps</div><div><br></div><div>Cal</div><div><br></div><div>[1] <a href="http://blog.simplicitymedialtd.co.uk/476/analysis-of-cisco-7940-sip-alg-and-nat-traversal-problems">http://blog.simplicitymedialtd.co.uk/476/analysis-of-cisco-7940-sip-alg-and-nat-traversal-problems</a></div>
<div><br></div><div><br><br><div class="gmail_quote">On Tue, Jun 11, 2013 at 9:30 AM, andpe <span dir="ltr"><<a href="mailto:andpe@poczta.onet.pl" target="_blank">andpe@poczta.onet.pl</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>Hi</div>
<div> </div>
<div><span lang="en"><span>I have a problem</span> <span>with the registration of</span> <span>the Cisco</span> <span>79xx</span> <span>phones</span><span>.</span> <span>The</span> <span>SIP</span> <span>Message</span> <span>Header</span> <span>(MH)</span> <span>which</span> <span>sends the</span> <span>phone</span><span>,</span> <span>in the fields "</span><span>TO</span><span>" and "</span><span>FROM"</span>, <span>places the</span> <span>IP address instead of</span> <span>the domain name.</span> <span>The</span> <span>configuration of the phone</span> <span>is set to</span> <span>the domain name</span> <span>(</span><span><a href="http://xx.yy.com" target="_blank">xx.yy.com</a></span><span>.)</span> <span>Is there any</span> <span>way to</span> <span>set the phone</span> <span>to send</span> <span>the domain name in</span> <span>the field</span> <span>instead of</span> <span>an IP address</span><span>?</span> <span>Is there a</span> <span>firmware version</span> <span>that sends</span> <span>MH</span> <span>correctly?</span></span></div>
<div> </div>
<div><span lang="en"><span>Andy<br></span></span></div>
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