Your company has a main office in Dallas.

The company has a Microsoft Teams Phone deployment.

Currently, the default audio conferencing bridge is set to a phone number that has a Miami area code.

In the Microsoft Teams admin center, you get a number in the Dallas area code.

You need to assign the new Dallas number as the default audio conferencing bridge.

What should you configure in the Microsoft Teams admin center?

A. the Conference bridges node under Meetings

B. the Networks & locations node under Locations

C. the Phone numbers node under Voice

D. the Auto attendants node under Voice

Reference:
https://docs.microsoft.com/en-us/microsoftteams/change-the-phone-numbers-on-your-audio-conferencing-bridge