[Asterisk-Users] SIP, * and clients behind NAT

[Wilson Pickett]

> Even if I do get the ATA working fine behind my home NAT, I would have
> to do some reconfiguration most likely anywhere else I try plugging it
> in, right?  And, if I wanted to add another ATA at home connected to the
> same remote * server, it's most like not going to work without custom
> RTP port forwards, etc., right?

Yes, this is the nasty secret of SIP. Well not that secret since
hundreds of pages have been written about it and several people come
to #asterisk daily with this exact complaint.

One direction is IAX2 and hopefully there will be the Farfon adapter
in the not too distant future for that as well as the first IAX2
phones about to ship RealSoonNow.

For only home use, you should be able to get it working with port forwarding.