[asterisk-users] Phones flapping with * and Sonicwall.

[Luke Hamburg]

Have you tried adding 'qualify=no' in the peer definition?

Are all the natted phones using port 5060 as their SIP port?  I don't know
how many "a bunch" is but if it's  not too many you might try having each
phone bind to a different port for its SIP signaling, sometimes that is
helpful with strict firewalls. 

e.g.  
Mary x102  use port 50102
John x114  use port 50114

This port would need to be set at the endpoint itself either manually or via
the provisioning server, setting it in Asterisk has no effect.  Just an
idea.

Luke

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Mike Diehl
Sent: Thursday, October 13, 2011 12:22 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] Phones flapping with * and Sonicwall.

Hi all,

I've got a bunch of Polycom 301's at a site that sits behind a Sonicwall
firewall. 

What I'm seeing is that the phones are constantly becoming unavailable,
followed shortly by becoming available again.

The phones register just fine and sound great on out-bound calls.  The
phones are configured NAT=yes and type=friend, as I do with all my Polycoms.

A sniffer trace indicates that Asterisk is sending an OPTIONS request to the
phones but no reply is being sent... most of the time.

I'm thinking it's a firewall/NAT timeout issue.  Has anyone seen this?  Has
anyone fixed it?  Any ideas, otherwise?

TIA.


-- 

Take care and have fun,
Mike Diehl.