Once you Purchase a Twilio Phone Number, here's how to assign a dedicated Twilio number to each user:
Go to Settings > My Staff > Edit the user you want to assign the number to
Choose the number you bought for the user
Note: We could only assign one Twilio number to one user.
Once the Twilio number is assigned, all calls to that Twilio number will route to the user's phone number even if the contact is assigned to another user.