PAP2 updates

It has been a while since I've posted about my PAP2 connected to our system. There were quite a few hard days (as posted) while I tried to get the thing to register and stay registered. After that post, it was working quite well, but every few days or so it would unpredictably 'go offline'. I would mess around with various settings and it would magically work again for a while - not the best scenario when you are trying to convince your wife that this is the cooler/cheaper alternative to Vonage! :(

I have isolated the problem to ports and ip address changes (DCHP?).

First, whenever it goes offline, to repair it, usually all I have to do is log into the PAP2 gui and change the ports from this:
line1 @ 5060
line 2 @ 5061

to this:
line 1 @5064
line 2 @ 5065

I have also noted that there seems to be a connection between when their are network changes at the location of the asterisk server. It finally dawned on me when I pulled the electrical cable out of the router to reset it at the location where the asterisk server is plugged in. Of course, everything went down, and went back up again, but after that my home PAP2 (connected remotely to this network) would not register anymore and required me to go in and manually do the aforementioned port changes.

My theory is that if I were to purchase a static IP address where the asterisk is located, that this would no longer happen. Would the price of the static IP make it worthwhile? I"m not sure. I haven't priced it. ...