I found out that I have a faulty Belkin Router which was causing the
problem. I tried forwarding ports as well as DMZ'd the Sip device but
still could'nt not hear the voice. So i plugged the sip device directly
to the cable modem & it worked fine. So my guess is that though I
have set up the router to forwards port to the sip device there is
something happening at the router that is blocking the RTP ports
(10000-20000).<br>
Thanks<br>
<br><br><div><span class="gmail_quote">On 11/24/05, <b class="gmail_sendername">Tom Rymes</b> <<a href="mailto:trymes@cascadelinksystems.com">trymes@cascadelinksystems.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On Nov 23, 2005, at 11:04 AM, Manny A. Wise wrote:<br><br>[snip]<br>> Well, as the user stated on the original message, the asterisk<br>> server is behind a NAT and the client is also behind a NAT….<br>><br>> if you make it work just by opening ports, let me know..I have
<br>> never been able to get it to work, that's why I don't use sip, just<br>> plain iax2 for everything… J<br>><br>> Manny<br>><br>Manny,<br><br>I have this working as I write this. (I just hung up the phone.) In
<br>fact, I brought a Cisco 7940G to a completely unknown nat-ed network<br>the other day, plugged it in and started making calls right away.<br>Here's the setup I have for this specific configuration:<br><br>1.) Asterisk server behind NAT. (Setup as DMZ on Linksys WRT54G, but
<br>it's still NAT. I just don't have to forward ports this way)<br>2.) externip, localnet, nat settings configured in the sip.conf file<br>(sip_nat.conf for Asterisk@Home)<br>3.) Cisco phone (or whatever SIP UA you choose) configured for NAT
<br>(via the SIP<MAC>.cnf file for Cisco)<br>4.) Lather, rinse, repeat if necessary<br><br>Hopefully that will work for you. I'd rather use IAX and avoid these<br>problems altogether, but I have yet to find an IAX hardphone I am
<br>willing to use. In fact, for softphone use, I do indeed use IAX via<br>LoudHush for the mac. (Great piece of software, BTW. No connection<br>here, just a happy user...)<br><br>Tom<br><br>--------------------<br>Tom Rymes
<br>Cascade Link Systems<br><a href="http://www.cascadelinksystems.com">www.cascadelinksystems.com</a><br>(603) 375-1414<br><br>"Intelligent technology solutions for small businesses."<br><br><br>_______________________________________________
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