Voice Call Authentication allows the use of any phone number that can receive calls to be used as an MFA factor within Okta. When prompted, the user will receive a phone call on the phone number that was set up during the enrollment process and they will be supplied with a code (verbally). The user then inputs the code into the MFA prompt and is allowed into the service. Please note that if you choose to use a phone number associated with a landline phone, you must be physically near that phone in order to receive the code. 

Set up Voice Call Authentication

• On the Set up security methods screen, click the Setup button below the Phone option.
  
  
  
• On the Enrollment screen, select your country and enter your phone number. If you have an extension, be sure to enter it in the extension field. If not, leave that field blank. When done, Click Receive a code via voice call.
  
  
  
• Your phone will ring and you will verbally be given a 5-digit code. Input the code in the Enter Code field and click Verify.
  
  
  
• NOTE: If you do not receive the code at this stage, a prompt will appear to Call again. If you do not receive the voice call, please select this prompt and the system will attempt to call again.
• If the code was entered correctly, you are then directed back to the factor enrollment screen. If you are finished, click Set up later.

Using Voice Call Authentication

• When you attempt to access a service that is secured behind MFA, you will be prompted for Authentication. Next to Phone, press Select.
• On the prompt, click the Receive a voice call instead link to initiate the process. If you don't click that link, you will never receive a code!
  
  
  
• The phone call will provide you with a 5-digit code. Enter the code into the box and click the Verify button.
  
  
  
• NOTE: If you do not receive the code at this stage, a prompt will appear to Call again. If you do not receive the voice call, please select this prompt and the system will attempt to call again.
• If the code was entered correctly, you will be directed to the service you were trying to access.