What relevance does any of this tangential discussion have to the 44/8 network?
It seems to be that discussion about how SIP works, or what a URI is, or what SRV records are, or how service discovery can be realized on a global IP network would be relevant to *any* IP network. Surely there are more appropriate forums for such discussion. Surely such forums have a deeper and broader base of experience more equipped to field these concerns. Surely, if these problems can be solved, the internet at large should benefit.
Perhaps I do not understand the point of 44net. Is the point not to build an RF network that is part of the internet, but rather to discuss how hams might build an isolated network for their own needs while squatting on a full 0.4% of the IPv4 address space for no reason at all?
Let me put it more bluntly: if what you are discussing could work on 10/8 just as well as it could work on 44/8, then please consider that maybe your discussion isn't very inspired. Having a full /8 block of potentially globally routable IP addressing space available to the amateur radio service is a unique opportunity, one that could not feasibly be purchased today, and one that has been largely squandered thus far. If you don't immediately understand what unique opportunity 44/8 presents, then perhaps you are not a very good network engineer and you should consider talking less and listening more carefully.