Hi,

I just want to dwell around a couple of things.

Several vendors have “application awareness” for instance Cisco has <fixup protocol sip…>

Hence the ser will not se the client as nat’ed and will not send nat-ping to the clients.

If the client does not support some kind of keep-alives, I guess you will loose connectivity with the clients when standard register expiry is 3600 sec. (off course until the next register message is sent)

The Cisco PIX, for instance, have a standard (however configurable) sip inactivity timer = 1800sec.

What would actually be the best way of dealing with this?

Best regards,

hw