Using a Headset 59If your system uses a messaging application other than NBX Messaging,use the documentation for your messaging application instead of theseinstructions.To activate the one-call-only Class of Service Override from a 3ComTelephone:1 Pick up the handset.2 Press Feature + 433.3 Dial your telephone extension and press #.4 Dial your voice mailbox password and press #.5 When you hear the dial tone, you can dial the call in the same way thatyou do from your own 3Com Telephone.When you use Class of Service (CoS) Override, any reports that aregenerated on the NBX system indicate that the CoS features of your own3Com Telephone were applied temporarily to the telephone on whichyou made the call.Using a Headset You can use a headset that has a microphone with any telephone on anNBX system.■ For how to use a typical headset and amplifier with the 3Com Basic,Entry, or 3102 Business Telephone, see “General Headset Instructions”later in this section.General HeadsetInstructionsFor 3Com Basic, Entry, or 3102 Business Telephone, follow theseinstructions.You may need to modify some of these instructions for some headsets oramplifiers. See the instructions that come with your equipment.To prepare a headset for all calls:1 Insert the cord for the headset amplifier into the handset cord receptacleon the underside of the telephone.2 Insert the cord for the telephone handset into the headset amplifier.3 Put on the headset.4 Pick up the telephone handset and set it on your desk.
