This is not technically true. For instance, you can take a Cisco 79X0 and put it behind NAT and it will work without port forwarding. You do, however, have to program the phone to enable the NAT features. (There are two, I can't remember their names, though.) I have generally left the WAN IP address blank, with no noticable ill effects, but that might not be a good idea.
Also, I believe that you can do this with multiple phones, so long as you use different port numbers for each phone (5061, 5062, etc) Tom > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Rudolf Ladyzhenskii > Sent: Saturday, August 13, 2005 9:53 PM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [Asterisk-Users] Why NAT problem > > > At firewall/NAT you have to do port forwarding. > > If your phone is at port 5060, NAT device will receive a > connection and has > to know that it is destined for your SIP phone. So, forward > port 5060 to the > phone. > > Rudolf > > > ----- Original Message ----- > From: "Kamran Ahmad" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Sunday, August 14, 2005 6:52 AM > Subject: [Asterisk-Users] Why NAT problem > > > > hello > > > > i am using asterisk-1.0.9. i have a NAT problem. > > without NAT registration is ok. and if user is bhind > > NAT it is registring on asterisk. but SJPhone is > > showing "not registered". i think asterisk is properly > sending request > > to UA. any comments............this sip.conf setting was working > > previously > > > > -- Registered SIP '5000' at 0.0.0.0 port 5060 > > expires 120 > > -- Saved useragent "SJLabs-SJphone/1.40.258" for > > peer 5000 > > > > [general] > > context=default > > port=5060 > > bindaddr=0.0.0.0 > > srvlookup=yes > > nat=yes > > canreinvite=no > > > > [5000] > > type=friend > > port=5060 > > canreinvite=no > > host=dynamic > > nat=yes > > insecure=yes > > auth=plaintext > > > > > > > > > > > > ____________________________________________________ > > Start your day with Yahoo! - make it your home page > > http://www.yahoo.com/r/hs > > > > _______________________________________________ > > Asterisk-Users mailing list > > [email protected] > > http://lists.digium.com/mailman/listinfo/asterisk-users > > To UNSUBSCRIBE or update options visit: > > http://lists.digium.com/mailman/listinfo/asterisk-users > > _______________________________________________ > Asterisk-Users mailing list > [email protected] > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
