You have a Teams Phone deployment. You discover that the Teams client cannot receive PSTN calls but can receive Teams calls. You need to ensure that the Teams client can receive both PSTN and Teams…

Managing a call group allows calls to ring multiple people simultaneously but does not prevent direct PSTN calls from ringing a user if not part of a group.

The 'Redirect external phone calls' setting in the Teams client's calling configuration specifically controls how PSTN calls are handled, including options to redirect them or allow them to ring the client directly. A misconfiguration here would prevent PSTN calls from being received while internal Teams calls still work.

Managing delegates allows another user to answer calls on behalf of the primary user, but it doesn't explain why direct PSTN calls are not reaching the primary user's client.

Forwarding all calls would prevent both Teams and PSTN calls from ringing the client, which contradicts the symptom that Teams calls are received.