[Asterisk-Users] Asterisk and a SPA3000 behind NAT peer registration

[Alchaemist]

Hi,

        I have a little situation here :( Perhaps somebody can give me a 
hand with it.

        I have an Asterisk working, and in another office, a Sipura 
SPA-3000.
        I configured the SPA and I have the extension working, the incomming 
trunk working, but the outgoing trunk (peer) does not work.

        The issue is that I have a dynamic IP where the SPA is, and neither 
the SPA nor my router have DynamicDNS.
        So, if I manually change the host for the peer for the SPA PSTN 
Line, then everything works fine, and I can make local calls through it.
        BUT when my router's IP changes... I am lost. (EVEN while the 
extension SPAN Line 1, or the incomming trunk are registered and DO work.)

        According to what I read, if I setup the outgoing trunk to type=peer 
with host=dynamic, then I can make the peer to register itself into the 
Asterisk, so the asterisk will know where to contact the peer.
        But.... I cannot figure out how to make the SPA register as the 
peer? I can make it register as a type=friend for the incomming traffic, but 
not as a peer..

        The Line 1 part of the SPA is registering and working neatly.

        BTW I have Asterisk at home

        Any idea, suggestion, or whatever you can think about it?
        Thanks!!!

                            Alchaemist