80 CHAPTER 7: GETTING MORE FROM Y OUR T ELEPHONE SYSTEMFor help on accessing NBX features from an analog telephone, see theNBX Feature Codes Guide in the NBX NetSet™ utility. For how to set upyour NBX NetSet utility password the first time, see Chapter 1.Listening to YourMessages in YourE-mailYou can listen to your voice mail from any computer that allows you toaccess your e-mail. Your e-mail software application must be IMAP-4compliant, such as Microsoft Outlook. See your administrator forassistance with this feature.If you configure your first off-site notification method to send you ane-mail message when you have voice messages, the NBX system sendseach voice mail message as a sound-file attachment to an e-mailmessage. To listen to your messages using your computer, it must have asound device such as a USB headset or a sound card with either speakersor headphones.When you delete the e-mail message that contains the attached voicemessage, you are not deleting the voice message on the NBX system. Todelete voice messages from the NBX system, you must access your voicemailbox through the telephone or the NBX NetSet utility.See “Off-Site Notification” in Chapter 6 for a discussion of off-sitenotification behavior.Account (Billing)CodesAccount Codes allow your administrator to track calls that are associatedwith an individual client or account. When you dial a call or when youanswer your telephone, you dial a numeric account code that allows theNBX system to track time spent on the telephone with a client, perhaps tobe associated with a billable account.You may be forced to enter an account code for outgoing external calls.See NetSet > Personal Settings > User Information > CallPermissions to see if you are forced to enter an account code. SeeNetSet > Personal Settings > Account Codes for a list of publicaccount codes.