120 CHAPTER 7: F EATURE CODES■ Error Tone — You hear the “fast busy” tone, also called the“congestion” tone, when no circuits are available. In addition, youhear the Error Tone if you make an error such as trying to enter anunsupported feature code, an invalid extension, or an invalidpassword. Hang up and start the feature code sequence again.■ Feature Active Tone — Example: You activate one of the“persistent” features, for instance, you lock your telephone, and thenhang up. The next time that you pick up the handset on your analogtelephone, you hear the Feature Active Tone. This pair of tones, asound followed by a higher sound, is repeated to remind you that youhave enabled one of these features:■ Caller ID Restriction — All■ Do Not Disturb■ Forward All Calls to Voice Mail (that is, to your call coverage point)■ Lock or Unlock Your Telephone■ Call Forward All■ Call Forward Busy■ Call Forward No AnswerThese features are “persistent,” that is, each one remains active untilyou turn it off, as described in Table 8.If you forget which of the persistent features you have activated onyour telephone, log in to the NBX NetSet Utility and go to My CallingPrivileges > Feature Settings. See “NBX NetSet Utility” in Chapter 1for information on how to log in to the NBX NetSet utility.Exception: If you have activated one or more persistent features and yourmailbox has messages, you hear the New Messages Dial Tone wheneveryou pick up the handset until you have deleted all messages.Feature Codes with3Com TelephonesA large number of telephone features are available by pressing theFeature button on a 3Com telephone and entering a three-digit featurecode. These feature codes are listed in Table 8.■ Because your administrator determines whether some of the featuresthat are described in this chapter are available for your telephone orfor the entire system, some of these features may not be available toyou.
