DCS Gateway Keyset User Guide— 12 —Sending a FlashWhile on an outside call:Press the RECALL key to send a flash.Busy Line Queuing With CallbackIf you cannot obtain an outside line:• Press the CALLBACK key—or press the TRSF key and dial*44. You will hear confirmation tone.When the line becomes free the system will call you back.• Lift the handset or press the ANS/RLS key to answer.The Callback feature can be released (cancelled), before thesystem calls you back, by dialling #44 plus the trunk accesscode.A callback will be cancelled if not answered within a pre-programmed period of time. If you have set a callback, yourCAMP key will light.