Michaƫl Gaudette
2006-Jan-22 08:04 UTC
[Asterisk-Users] RE: Asterisk-Users Digest, Vol 18, Issue 131
Mark, Thanks a lot for the feedback. It's reassuring to say the least Mike Message: 18 Date: Sat, 21 Jan 2006 15:36:18 -0500 From: Mark Phillips <g7ltt@g7ltt.com> Subject: Re: [Asterisk-Users] SIP and NAT - best practices? To: Asterisk Users Mailing List - Non-Commercial Discussion <asterisk-users@lists.digium.com> Message-ID: <43D29B42.3060705@g7ltt.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Most often the simple addition of nat=yes in the relevant sip.conf stanza is all that's required to make a remote SIP phone work from behind a firewall. for example [2201] user=blah secret=blah auth=blah allow=blah host=dynamic nat=yes I've been running 4 remote SIP phones across the internet from my families houses all over the world in this manner. The only issues I get are those of bandwidth availability or rather occasional lack of it. Hosted PBX's are no different. The hosting service should be providing a similar mechanism (although it might not be Asterisk based). Mark, G7LTT/KC2ENI Randolph, NJ http://www.g7ltt.com Michakl Gaudette wrote:> Thanks Moises. I was kind of hoping that, at least if I hosted myAsterisk> server somewhere where there was no NAT for the * box that the SIP phones > wouldn't create any issues. > > How do you people with Hosted PBX handle the deployment of SIP phonesbehind> NAT firewalls? Is it just elbow grease and configuring every single phone > for the customer, or is there a way? > > Mike > > > > you can redirect the ports of the router as well. Or you can configure > your SIP phone to use a STUN server. Please read in voip-info.org > about SIP NAT, there are good suggestions. > > regards > > On 1/20/06, Michakl Gaudette <michael.gaudette@virtutel.ca> wrote: > >>Hello, >> >>I'm a bit new to SIP, and I've set up a SIP line with Asterisk and my >>wholesale provider. That worked, fine. I ahd to open up the ports on my >>router, forward them to the correct box, again fine. >> >>Now, if I get one of my customers to connect his SIP phone to my Asterisk >>box, and HE'S behind a NAT firewall, does he have to go through the same >>process, or is it just the Asterisk box that needs to translate the SIP > > and > >>RTP port? >> >>In other words: if my SIP phone is behind a Linksys router, do I need to >>configure the Router for any reason? >> >>Mike > > > _______________________________________________ > --Bandwidth and Colocation provided by Easynews.com -- > > Asterisk-Users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >