[amluto]

> You want outbound calls from your Philippines based staff to show as if they were calling from a local number.

This is a valid use case, but I’m a bit surprised that the mechanism isn’t better controlled. Surely a better design would be for an actual local entity to forward the call, possibly with an optimization to allow the voice data to bypass the local entity once the call is connected.

[edent]

The mechanism is https://en.wikipedia.org/wiki/STIR/SHAKEN

But it is slow to roll out.

[amluto]

As far as I know, STIR/SHAKEN doesn’t do this at all. See, among other things, the very first entry in the Wikipedia page’s limitations section.

[rusk]

Just whitelist the caller ID and have the originating network guarantor

The second part is the hard part and requires coordination

It wouldn’t be expensive or especially hard to do but there is no payoff for the network. Remember they make money off scam calls too

Since as long as I can remember these organisations have been optimised for profit, not for GAF and that’s why they’re being savaged by regulation and OTT competitors now

There has been no market forces compelling them to do this and until recently when it got really bad, no political or regulatory forces

tl;dr na bro