Hello, good day and thanks for your question. Kindly take note, users with active subscriptions and Skype Credits are able to use the Skype Dial Pad to continue to make calls to landlines and mobile numbers. You can also find the dial pad on the web at calling.web.skype.com.
You may check the link below for the additional information with regards to Microsoft Teams Phone which is a paid calling plan and this is a separate license.
https://www.microsoft.com/en-us/microsoft-teams/microsoft-teams-phone