Do you mean you want to contain the dial-in number in Teams meeting?
If so, you need to create an audio conference. To set up Audio Conferencing in Teams, you will need to have an Office 365 subscription that includes the Phone System add-on. Once you have this, you can set up Audio Conferencing by following these steps:
- Go to the Microsoft Teams admin center and select "Meetings" from the left-hand menu.
- Under "Audio Conferencing," select "Users."
- Select the user(s) you want to enable Audio Conferencing for and click "Edit."
- In the "Audio Conferencing" section, select "On" and choose a toll number or toll-free number for participants to dial in to.
- Save your changes.
- Once you have set up Audio Conferencing, any meetings you schedule in Teams will include a dial-in number in the meeting invitation.
For more details, you could refer to:
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