This issue has been resolved by AT&T.
If you continue to have problems please contact the Customer Service Center via E-Mail at email@example.com or you can call them direct at 2888.
Tuesday, January 22nd, 2013 – 10:15 am
Problems Accessing Voice Mail
We are experiencing issues with the AT&T Simplified Message Desk Interface (SMDI). The SMDI connects our voice mail services to AT&T telephone services. We are working with AT&T to get this corrected. This will impact voice mail services when dialing 2800 from your office phone to check your voice mail messages. Until this is corrected, to get to your voice mail; call 2800 and wait for message, then hit #, then enter your mailbox #. The system will then prompt for your password.
If you have any questions or concerns please contact the Customer Service Center via E-Mail at firstname.lastname@example.org or you can call them direct at extension 2888.