After you call a busy extension, use Call Waiting to wait in line (i.e.,Camp On) without hanging up. When you Camp On, the system sig-nals the busy user indicating that you are waiting. Your call goesthrough when the busy extension becomes free.Call Waiting also helps when you are on the phone because it lets youknow when additional calls are trying to get through. Call Waiting letsyour callers wait in line without being forgotten.Note: When you call a busy attendant, your call will normally "stackup" in queue behind other waiting callers.1. Call the busy extension. You must hearbusy tone.2. or (Camp On).3. Wait without hanging up.Your Camp On ProgrammableFunction Key lights while you wait.If you hang up, the system convertsyour Camp On to a Callback (see page26).To Camp On to a trunk, see the TrunkQueuing feature on page 123.1. Hang up.If you skip step 2, the extension willcall you back when it becomes free.2. + .OR(Camp On).Your Camp On ProgrammableFunction Key goes out.To cancel a Camp Onrequest:To Camp On to a busyextension:Call Waiting/Camp On25