Did you know your organization could be eligible for a one year of Audio conferencing promo, or a discount on Advanced Communications? You can read about the promo here.
Audio conferencing is a great addition to your Teams meetings, and allow participants without data-capability to join through PSTN connectivity for audio participation.
To enable this feature after sign up, assign licenses to the users who will host meetings with PSTN participants. Here is a quick guide in the documentation library.