<font class="Apple-style-span" face="verdana, sans-serif">Tim,</font><div><font class="Apple-style-span" face="verdana, sans-serif"><br></font></div><div><font class="Apple-style-span" face="verdana, sans-serif">Can you share your success stories FreeSWITCH and Aastra.</font></div>
<div><font class="Apple-style-span" face="verdana, sans-serif"><br></font></div><div><font class="Apple-style-span" face="verdana, sans-serif">Aastra Phones Behind the NAT?</font></div><div><font class="Apple-style-span" face="verdana, sans-serif"><br>
</font></div><div><font class="Apple-style-span" face="verdana, sans-serif">In my case Aastra phones registration not a problem. </font></div><div><font class="Apple-style-span" face="verdana, sans-serif"><br></font></div>
<div><font class="Apple-style-span" face="verdana, sans-serif">But calls drooped every 60 sec</font><span class="Apple-style-span" style="font-family: verdana, sans-serif; "> ... in the same environment Linksys and Polycom works perfectly.</span></div>
<div><font class="Apple-style-span" face="verdana, sans-serif"><br></font></div><div><font class="Apple-style-span" face="verdana, sans-serif">How stable the Aastra phones with FreeSWITCH system.</font></div><div><font class="Apple-style-span" face="verdana, sans-serif"><br>
</font></div><div><font class="Apple-style-span" face="verdana, sans-serif">TIA</font></div><div><font class="Apple-style-span" face="verdana, sans-serif"><br></font></div><div><font class="Apple-style-span" face="verdana, sans-serif">Lloyd</font></div>
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<br><br><div class="gmail_quote">On Thu, Feb 10, 2011 at 6:23 AM, David Ponzone <span dir="ltr"><<a href="mailto:david.ponzone@ipeva.fr">david.ponzone@ipeva.fr</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div style="word-wrap:break-word">Philippe,<div><br></div><div>can you confirm there is no NAT Keepalive feature in the Aastra ?</div><div>That's quite weird.</div><div><br></div><div><div>
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<br><div><div>Le 10/02/2011 à 11:39, Philippe Sultan a écrit :</div><div><div></div><div class="h5"><br><blockquote type="cite"><div>Tim,<br><br>That helped a lot, thanks! More comments inline.<br><br>On Thu, Feb 10, 2011 at 3:18 AM, Tim St. Pierre<br>
<<a href="mailto:fs-list@communicatefreely.net" target="_blank">fs-list@communicatefreely.net</a>> wrote:<br><blockquote type="cite">I'm wondering about these values:<br></blockquote><blockquote type="cite"><br>
</blockquote><blockquote type="cite"><blockquote type="cite">sip registration retry timer: 10<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">sip registration renewal timer: 15<br></blockquote>
</blockquote><blockquote type="cite"><blockquote type="cite">sip registration timeout retry timer: 10<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">sip registration period: 60<br></blockquote>
</blockquote><blockquote type="cite"><blockquote type="cite">sip rport: 1<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite">They seem a bit short, especially on a LAN. Do you really need your<br>
</blockquote><blockquote type="cite">phones to re-register every 45 seconds?<br></blockquote><br>Indeed, I don't. But need a mechanism to keep NAT sessions alive in<br>case phones are being deployed behind NAT boxes. It seems like<br>
transporting SIP over TCP from the phone, plus using TCP keepalives<br>will solve that issue though. I also have Thomson ST2030 phones, and<br>they send SIP OPTIONS packets every 50 seconds for that purpose (all<br>handled by the SER proxy).<br>
<br><blockquote type="cite">Try setting sip registration period to 600 That's 10 minutes.<br></blockquote><blockquote type="cite">sip registration renewal timer can be a bit longer - 30 seconds maybe,<br></blockquote>
<blockquote type="cite">or 60 if you are at all worried about reliability.<br></blockquote><br>Here is what I put in the aastra.cfg file from your suggestions :<br><br>sip registration period: 3600<br>sip registration renewal timer: 3565<br>
<br>And that does the trick, that is, the phone registers every 45<br>seconds. I'll try to update those values to have a larger registration<br>period, rely on TCP keepalives in order to maintain NAT sessions, and<br>
have all that NAT handling in SER. Here is the topology :<br><br>Aastra ---(sip/tcp)--- SER ---(sip/udp)--- FS<br><br>ST2030 ---(sip/udp)--- SER ---(sip/udp)--- FS<br><br>Thanks again!<br><br>Philippe<br><br>_______________________________________________<br>
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