On Friday, 12 January 2018 12:43:52 PM AEDT Paul Brooks wrote: > I think what you're looking for is RFC 6116 ENUM - a DNS lookup of a > telephone number to a URI such as a SIP address, and RFC 5067, RFC 5526 > "Infrastructure ENUM", and RFC 3824 "Using E.164 number with SIP".
That is indeed what I had in mind, but wasn't aware of those RFCs. > Considerations like lawful interception, metadata retention etc require the > call to pass through the RSPs on the way through, it can't just take a > shorter routing path direct IP-to-IP or neighbour-to-neighbour like nirvana > of IP telephony might imagine, as it might occur within a single campus like > a corporate office, so there's little real routing efficiency to be gained. I hadn't thought of that. However some VoIP devices allow IP-routed (and encrypted) calls now, and anyone can set up an IPsec tunnel. But packets are still routed over an IP network, and I think it's true that most of the value of meta-data lies in knowing who is communicating with whom; it's probably easier for ASIO to hack into a computer directly if they want to know what's going on. I take your point about addressing architecture. Cheers! DavidL. _______________________________________________ Link mailing list [email protected] http://mailman.anu.edu.au/mailman/listinfo/link
