On Sun, 28 Jan 2007 09:07:01 +0000, Roger Baker <me@privacy.net>
wrote:

>I can understand that if I give the Samsung phone a static address
>then I can set the port forwarding in my router, but how does this
>work with a local dynamic IP?

port forwarding is in general not required as the STUN protocol works
around the NAT.

The phone (Siemens ?) registers to the SIP provider and makes a
connection through the NAT firewall, incoming calls are signalled
through that connection.

Phil
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