Extending the timeout to hit the # for MFA phone call RRS feed

  • Question

  • is there a way to extend the timeout for a received phone call for MFA?  We're starting to deploy it and it seems like we only get about 5 seconds.
    Thursday, December 22, 2016 3:09 AM


  • Hi,

    Thanks for posting the query here!

    Actually, The system waits 10 seconds after the voice greeting has finished playing before it times out. That timeout can't be changed directly. It can be extended by recording your own voice greetings and adding silent time at the end of the greeting.

    Custom voice messages allow you to use your own recordings or greetings with multi-factor authentication. These can be used in addition to or to replace the Microsoft records.

    Before you begin be aware of the following:

    *The current supported file formats are .wav and .mp3.
    *The file size limit is 5 MB.
    *It is recommended that for Authentication messages that it be no longer than 20 seconds. Anything greater than this could cause the verification to fail because the user may not respond before the message finishes and the verification times out.

    For more information to set up custom voice messages in Azure Multi-Factor Authentication kindly check the following link : 

    Hope this helps you 

    Let me know if you need further assistance on this.

    Thanks & Regards
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    • Proposed as answer by vijisankar Thursday, December 22, 2016 3:28 PM
    • Edited by vijisankar Thursday, December 22, 2016 3:29 PM
    • Marked as answer by TZed Thursday, December 22, 2016 4:10 PM
    Thursday, December 22, 2016 3:28 PM