Stored only in this browser (localStorage). For the demo the token is minted client-side — don't ship this pattern to production.
Azure portal → your Communication Services resource → Keys.
The PSTN number attached to the resource, in E.164 format. Shown to the person you call.
Only used when the dialer runs inside the Dynamics side panel — it loads the CIF library from this org.
Numbers from Dynamics without a + prefix get this prepended (a leading 0 is dropped: 0640… → +31640…).
Advanced: use a pre-minted access token instead
If token minting from the browser is blocked, mint one yourself and paste it here: az communication identity token issue --scope voip --connection-string "<conn string>"