xlite topology should be:

use local address

advanced

session timers=disabled
sip keepalives=enabled
rport=enabled

account

register with domain and receive calls=checked
domain=checked

What is your setting at

System>Internet calling:

Use external SBC for Internet Calling

set for?




Since both phones are remote and on the same local network also, what is the
setting in sipx for


On Thu, Feb 3, 2011 at 5:20 AM, xavier houghton <[email protected]>wrote:

>
> HI List, i have a problem with a UA when recieving inbound calls.
>
> The problem seems to be a missed routed ACK coming from SIPproxy.
>
> I'm posting it here as it seems to be similar to a couple of bugs in the 
> tracker (XTRN-970 <http://track.sipfoundry.org/browse/XTRN-970> .  I had 
> earlier in the week posted a similar issues in sipxuser list
>
> I'm calling an internal extention from another internal extention.
>
> the scenarion i have is as follows:
>
> phone1 - X-lite on LAN 10.7.6.214: ext 205
>
> Phone 2 - Intertex ix67 ATA on LAN  (using phone port) 10.7.6.191: ext 206
>
> My LAN is Behind a NAT.  I have an intertex firewall with SIP module off and 
> no rewriting going on to replicate a standard remote setup with ALG off
>
> SIPx hosted on VM on public IP address outside of this network. its running 
> 4.2.1-01897 build 34 from ISO. the server is behind a 1:1 NAT
>
> internet calling is setup for remote users and sipx knows its behind a nat.
>
> the registrations look like this is sipxconfig
>
>   sip:[email protected]
> <sip:[email protected]:63854;rinstance=231fc0b019b13367;x-sipX-privcontact=10.7.6.214%3A5546>
>  179
>
>   sip:[email protected]
> <sip:[email protected]:63996;x-sipX-privcontact=10.7.6.191>
>
> The symptoms are that after 60 seconds an inbound call to the UA stops.
>
> here's what happens to the call
>
> When i call phone 2 from phone 1 the call is setup and there is audio both 
> ways.  after 62 seconds the call stops.
>
> I've looked at the traces in sipviewr and see that on the call setup SIPX get 
> a 200 OK from phone 2 which is forwarded to Phone 1.
> phone 1 replies with an ACk to sipproxy.
> SIPx forwards the ACK to the Phone 2 LAN address, destination 10.7.6.191.
> as the ACK never gets to the phone2, phone 2 resends the 200Ok a number of 
> times with the same scenario as above happening.
> after a number of retires phone 2 sends a Bye and the call ends.
>
>
> i have no issues the other way round.  that is to say when calling Phone 1 
> from phone 2 i have no issues had the call up for around an hour.
>
>
> I've included a snapshot attached.
>
> I've also included a trace from SIPX.
>
> Sub2.xml is the failled call.
> Sub1.xml the working call for reference if needed.
>
> help?
>
>
>
>
> _______________________________________________
> sipx-dev mailing list
> [email protected]
> List Archive: http://list.sipfoundry.org/archive/sipx-dev/
>



-- 
======================
Tony Graziano, Manager
Telephone: 434.984.8430
sip: [email protected]
Fax: 434.326.5325

Email: [email protected]

LAN/Telephony/Security and Control Systems Helpdesk:
Telephone: 434.984.8426
sip: [email protected]

Helpdesk Contract Customers:
http://support.myitdepartment.net

<http://support.myitdepartment.net>Blog:
http://blog.myitdepartment.net

Linked-In Profile: http://www.linkedin.com/pub/tony-graziano/14/4a6/7a4
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