6Using a Headset 76With the 3Com Manager’s Telephone and 3Com 3102 BusinessTelephone 76General Headset Instructions 76Returning to the Headset After a Long Delay 77Using Hands Free Active on Intercom 78Palm Integration 787 G ETTING M ORE FROM YOUR TELEPHONE S YSTEMListening to Your Messages in Your E-mail 80Account (Billing) Codes 80Caller ID 81Internal and External Caller ID 81Calling Line Identity Restriction (CLIR) 82Call Pickup 83Directed Call Pickup on a Specific Telephone 83Group Call Pickup 84Automatic Call Distribution Groups, Hunt Groups, and Calling Groups 84Automatic Call Distribution 85Hunt Groups 87Calling Groups 89Group Membership 89Supervisory Monitoring 90Monitor 90Whisper 91Barge-In 92Change Agent 92Interactions 92Call Park 93Paging 94Paging the System 95Paging Zones 95Configurable Operators 96How Configurable Operators Work 96Configuring the Operators 97