3SYSTEM TONESThe system provides several tones to assist you. Some of these tones arealready familiar to you.Intercom Dial Tone—A steady tone that indicates you can begin dialing.DIAL TONE—CONTINUOSCONTINUOUSRingback Tone—Indicates the station you dialed is ringing.RINGBACK TONE— 400 ms ON/200 ms OFF/400 ms ON/2000 ms OFFCONTINUOUSBusy Tone—Indicates the station you dialed is busy.BUSY TONE—350 ms ON/350 ms OFFCONTINUOUSDND/No More Calls Tone—Fast busy tone indicates the station youdialed is in the Do Not Disturb mode or cannot receive any more calls.DND/NO MORE CALLS TONE—250 ms ON/250 ms OFFFOR TEN SECONDSTransfer/Conference Tone—Indicates your call is being held and you candial another party.TRANSFER/CONF TONE—100 ms ON/100 ms OFFCONTINUOUSConfirmation Tone—Very short beeps followed by dial tone indicate youhave correctly set or canceled a system feature.CONFIRMATION TONE—100 ms ON/100 ms OFFFOR ONE SECONDError Tone—A continuous single level tone indicates you have donesomething incorrectly. Try again.ERROR TONE—CONTINUOUSCONTINUOUS4OUTSIDE CALLSMAKING AN OUTSIDE CALL• Lift the handset and receive internal dial tone.• Dial a C.O. line or line group access code.• Receive outside dial tone and then dial the telephone number.• Finish the call by replacing the handset.If your system is programmed to require an authorization code before makinga call:• Dial 4 and a valid code. You will hear confirmation tone, followed bydial tone.• Select a C.O. line.If your system is programmed to require an account code before making acall:• Dial 47 and a valid code.• Hookflash and receive transfer tone. Select a C.O. line.For more information see your system administrator.ANSWERING AN OUTSIDE CALL• Lift the handset. You are automatically connected to the ringing call.• Finish the call by replacing the handset.UNIVERSAL ANSWEROutside lines may be programmed to ring a general alerting device. To an-swer calls ringing this device, dial 67. This device can operate in the Day orNight mode.SENDING A FLASHWhile you are on an outside call, hookflash, receive transfer tone and dial 49to send a flash to the telephone company. This may be required for somecustom calling features or CENTREX lines.