To change or reset your PIN or Web password, just sign in to your online voicemail service account or access your mailbox by phone.

Reset your Unified Messaging PIN or Web password

Change your Unified Messaging voicemail PIN or web password

From your home phone:
  1. Dial *98 from your home or dial your telephone number, then press the * key when you hear the greeting.
  2. Enter your PIN and press #.
  3. Press 4 to change your mailbox settings.
  4. Press 2 to change administrative options.
  5. Press 1 for security.
  6. Press 1 to change PIN and follow the prompts.

From a computer:
  1. Go to www.um.att.com and sign in using your Unified Messaging email address and password.
  2. Select Settings at the top of the page.
  3. Under Security Settings, select Change PIN for Telephone.

Forgotten PIN

If you incorrectly enter your PIN, you will be given an option to enter your authentication code so that you can create a new PIN and access your mailbox.

Press 1 to enter the authentication code you selected during your initial mailbox setup. It’s an 8 digit number that may be the date of a family or friend's birthday.

Once you've entered it successfully, you'll be asked to create a new PIN.

Note: If you change your home phone voicemail PIN, you must also change your Voicemail Viewer PIN to match.

Change your Web Password or Forgotten Password

From a computer
  1. Go to www.um.att.com and sign in using your Unified Messaging email address and password.
  2. Select Settings at the top of the page.
  3. Under Security Settings, select Change Web Password.
  4. Enter your old password, then enter and confirm your new password.

Experiencing problems? Call AT&T Unified Messaging Customer Care at 888.300.6500, Monday through Friday 8 a.m. - 7 p.m. CT.

Additional resources

  • Print and take this quick reference by selecting the UM pocket guide.
  • For more options and detailed instructions, you can view the full Unified Messaging user guide at www.um.att.com.
Last updated: December 7, 2022

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