Hi Pavan,
I'm Ahmed and I am here & happy to help.
To add a user in the Microsoft Teams admin center in the call queue, you need to follow these steps:
In the Teams admin center, expand Voice, click Call queues, and then click Add.
Type a name for the call queue.
Click Add accounts, search for the resource account that you want to use with this call queue, click Add, and then click Add.
To add a user to the queue, click Add users, search for the user, click Add, and then click Add.
https://learn.microsoft.com/en-us/microsoftteam...
I hope this helps! Let me know if you have any further questions or concerns.
Best regards,