To get a Skype ID or Caller ID, a user must sign in to Skype, then select the Caller ID tab. Enter your mobile number here and it will become your phone number identifier, which is shown when you make a call. Then, Microsoft will send you a text to set up and confirm your Caller ID. What is my Skype name or Microsoft account? Your Skype name is your username, which is created when you first join up. You may not have a Skype name if you sign in with an email address instead. If your name is forgotten, the support service can help you obtain account access.