Calling a Co-WorkerYou can dial a co-worker on theIntercom (page 59), or usePaging (page 88) if you don'tknow where they are.When you must get through rightaway, interrupt a call using BargeIn (page 18).Certain Intercom calls may ringyour phone on function keys asMultiple Directory Numbers(page 71).Visitors at your entrance door can call you on the Intercom using aDoor Box (page 44).Outside CallsYou can Answer Outside Callsthat ring your phone or flash yourline keys (page 82). Caller IDallows you to identify the callerbefore or after you pick up thehandset (page 28). Night Service(page 74) may change the waythese same calls ring your phone.Set your Line Preference (page62) to answer ringing outside callsor Intercom calls first.To Place Outside Calls (page 84), use your line keys or dial codes.You may have to enter Account Codes (page 14) before your callgoes through. Use Dial Number Preview (page 38) to check yourdigits before you dial. Once your call goes through, the Call Timer(page 25) shows you how long you're on the phone. You may be ableto use Flash (page 49) to place another call without losing your line.Using All Those Features!2