ons. 15. sep. 2021 19.37 skrev Owen DeLong via NANOG <nanog@nanog.org>:
On Sep 15, 2021, at 09:31 , Masataka Ohta < mohta@necom830.hpcl.titech.ac.jp> wrote:
Baldur Norddahl wrote:
But in fact with local number portability, you cannot rely on the county ^^^^^^^^^^^^^^^^^^^^^^^^ code to tell you where to route a telephone call anymore.
Not. With geographical aggregation, you may route a call *anywhere* in the destination country.
You mean anywhere in the world. Calls to my number reach my cell phone no matter where I go.
You are confusing number portability and call forwarding.
Masataka Ohta
Not exactly… He is confusing number portability and roaming.
I am not confusing anything. Nobody said anything about number portability in the above quote. Just pointing out that some assumptions about how voice call works is not true. Nor would it be smart to send traffic to another part of the world unnecessarily. Local calls stay local even when roaming. Please remember that signaling and voice is separate in the telco world which is why it compares poorly with IP. Except for the LISP protocol which does something similar. Regards Baldur