To ensure Queue1 is assigned a phone number, you should add a resource account that has an associated service number.

 To ensure Queue1 is assigned a phone number, you should add a resource account that has an associated service number.

---

Explanation

• Resource Accounts: A resource account is an object in Teams that represents a specific resource, such as a call queue or an auto attendant. To assign a phone number to a call queue, you must first create a resource account for it.

• Service Numbers: Service numbers are a special type of phone number used for call queues, auto attendants, and conference bridges. These numbers can handle multiple simultaneous calls and are used for inbound calls to your organization's call-routing resources.

• Subscriber Numbers: Subscriber numbers are typically assigned to individual users and are used for personal calls. They are not used for call-routing resources like call queues.

• Call Agents: While you do need to associate a group or user as a call agent to the queue, this step is for routing calls to the agents after they enter the queue. It does not assign a phone number to the queue itself. The phone number is assigned to the resource account, which is then linked to the call queue.