Which two actions should you perform?

You have a Microsoft 365 subscription named contoso.com that uses Microsoft Teams.

You need to ensure that Microsoft Teams users can perform the following tasks:

• Search for customers that use Skype (Consumer).

• Start a Skype chat with the customers.

Which two actions should you perform? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.
A . From the Microsoft Teams admin center, turn on external access.
B. From the Azure portal, configure Azure AD B2C.
C. Add a _sipinternaltls SRV record to the contoso.com DNS domain.
D. From the Microsoft Teams admin center, turn on guest access.
E. Add a _sipfederationtls SRV record to the contoso.com DNS domain.

Answer: A,E