This article contains links to Microsofts user guides for making and managing calls in Teams:

Make calls

• Call a phone number
• Answer a call
• Start a call from a chat
• Add someone to a call
• Make multiple calls at the same time
• Put a call on hold
• Transfer a call

Manage calls

• Park a call
• Manage your call settings
• Call forwarding, call groups and simultaneous ring
• Share a phone line with a delegate
• Check your voicemail
• View or add contacts
• View your call history
• Turn off automatic video in call
• Control calls using a headset