we added some params for new better automatic nat handling, grep the new defailt configs for localnet and you will find what you are missing. Mike On Oct 18, 2009, at 11:14 PM, Chris Fowler wrote:

I've tried all sorts of debug and parameter changes over the weekend, but still can't figure out the correct solution.

If I disable timers on the sip profile then all works fine. <param name="enable-timer" value="false"/>

But that seems like a hack; not a correct solution. With the build 13168M (which is pre the new NAT functionality) everything worked fine.

The SIP trace shows the phones and FreeSWITCH happily exchanging NOTIFY and "200 OK" messages. Audio's working - just calls timeout after 100 seconds with RECOVERY_ON_TIMER_EXPIRE. Is enforcement of this timer new functionality - and really just exposing a problem I've always had before?

The config is (50 Polycom Phones -> NAT -> Internet -> Amazon EC2)

I would really appreciate some pointers on what to look for; additional trace that might reveal something.

Thanks, Chris.

On Fri, 16 Oct 2009 20:06:52 -0700, "Chris Fowler" <chris@fowler.cc> said:

...

Hi,

We've been using 13168M in production for some time now (works great). I want to get us onto the latest build but am having problems getting NAT to work.

Phones can register; can dial 9999 test #, but after 100 seconds the call is disconnected with error: 2009-10-16 19:52:26.936618 [NOTICE] sofia.c:4038 Hangup sofia/internal/1001@myhost.mydomain.com [CS_EXECUTE] [RECOVERY_ON_TIMER_EXPIRE]

I took the standard internal.xml and vars.xml files from the new build and made the following modifications - which worked previously:

modify conf/vars.xml and update <X-PRE-PROCESS cmd="set" data="domain=myhost.mydomain.com"/>

<X-PRE-PROCESS cmd="set" data="bind_server_ip=1.2.3.4"/> <X-PRE-PROCESS cmd="set" data="external_rtp_ip=1.2.3.4"/> <X-PRE-PROCESS cmd="set" data="external_sip_ip=1.2.3.4"/>

Modify conf/sip_profiles/internal.xml <param name="aggressive-nat-detection" value="true"/> <param name="ext-rtp-ip" value="$${external_rtp_ip}"/> <param name="ext-sip-ip" value="$${external_sip_ip}"/> <param name="NDLB-received-in-nat-reg-contact" value="true"/> <param name="NDLB-force-rport" value="true"/> <param name="NDLB-broken-auth-hash" value="true"/>

The big difference I note is that on PRODUCTION (which works) "sofia status profile internal" yields: URL sip:mod_sofia@1.2.3.4:5060 BIND-URL sip:mod_sofia@1.2.3.4:5060;maddr=10.250.35.224

But on Test I see: URL sip:mod_sofia@10.250.66.210:5060 BIND-URL sip:mod_sofia@10.250.66.210:5060

Any ideas?

Thanks, Chris.