[Asterisk-Users] NAT issues

[Eric Wieling aka ManxPower]

Steven Langley wrote:

> I tried putting in nat=yes in the sip.conf file, and asterisk then rewrites
> the sip message with the IP of the Nat and the external port. It still
> works, but only if there is a constant flow of rtp traffic. If there is a
> break in the traffic, then the connection is lost. However, this problem may
> be to do with the fact that pinging is disabled on our network, but not
> sure.

If you are the same person I spoke with on IRC then you forgot to 
mention that the SIP clients use VAD and that it cannot be disabled.