The five new U.K. users will be enabled with Microsoft Teams Calling Plan.

1. A Calling Plan requires Microsoft-supplied user numbers, so the administrator must order five user numbers in the Teams admin center (E).

2. After the numbers appear in the tenant, each number has to be assigned to its respective user from the Teams admin center (D).

3. To comply with the stated technical requirements for the site (domestic-only PSTN access), per-user dial-out permissions must be set to “Domestic only” in the Teams admin center (C).

No voice-routing policy is needed because Calling Plan handles routing automatically, and U.K. numbers can be acquired without opening a service request.

A. Voice-routing policies are used only with Direct Routing, not with Calling Plan.

B. Editing the “Office phone” attribute in Microsoft 365 does not allocate a PSTN number in Teams.

F. Support tickets are required only when a country’s numbers aren’t available in the portal; U.K. numbers are self-service.

G. Users already inherit the global Calling policy; an additional policy isn’t required for basic Calling Plan functionality.

1. Microsoft Teams – “Get phone numbers for your users” → Teams admin center > Voice > Phone numbers; self-service ordering supported for United Kingdom (Microsoft Docs

2023-07-18

Section: Countries where you can get numbers).

2. Microsoft Teams – “Assign

change

or remove a phone number for a user” (Microsoft Docs

2023-08-30

Steps 1-6).

3. Microsoft Teams – “Set the per-user outbound PSTN call option” → choose Domestic only (Microsoft Docs

2023-03-16

Section: Use the Teams admin center).

4. Microsoft Teams – “Plan your Teams Calling implementation” → Calling Plan requires no voice routing policy (Microsoft Docs

2023-05-26

Table: Configuration requirements).