PROTECTION FROM BARGE-INEach station can be programmed as secure or not secure. Secure stations cannot be barged-in on. A stationthat is not secure cannot be barged-in on when talking to a secure station.REDIALThere are three types of external redial available to all station users. Each type can redial up to a maximum of18 digits.• AUTO RETRY—When an outside number is dialed and a busy signal is received, the auto retry feature canbe used to reserve the outside line and automatically redial the number for a programmable number ofattempts (available to keyset users only).• LAST NUMBER—The most recently dialed number on a C.O. line is saved and may be redialed by press-ing the redial key or dialing the LNR access code.• MANUAL RETRY with LNR—When you make an outside call and receive a busy signal you can press theLNR key to redial the same number again.This operation can be manually repeated for a limited numberof attempts as defined by system programming (available to keyset users only).• MEMO REDIAL—When you are calling directory assistance you can store the number you are given usingthe dial pad and SAVE number feature. There is no need for a pencil and paper (available to keyset usersonly).• SAVE NUMBER—Any number dialed on a C.O. line may be saved for redial at a later time.REMOTE HOLDWhen you wish to place a call on hold at another station, press TRSF and dial the station number (or press theappropriate DSS key). Press the HOLD key.This will place the call on system hold on an available CALL buttonor Line Key at the remote station.RING MODESEach keyset user can select one of three distinct ways to receive intercom calls. The phone can automatical-ly answer on the speakerphone, voice announce through the speaker or receive ringing.When the ring modeis selected, keyset users can choose one of eight distinct ring tones. Forced Auto Answer is invoked by thecalling station and is controlled by the calling station’s class of service.RINGING PREFERENCELifting the handset or pressing the speaker button automatically answers a call ringing at the keyset. Usingthis method, users are assured of answering the oldest call first. When ringing preference is turned off, theuser must press the flashing button to answer. Users may answer ringing lines in any order by pressing theflashing button.SPEAKERPHONEThe speakerphone enables calls to be made and received without the use of the handset. The DS 5021D, DS5014D, iDCS 28D keyset and the iDCS 18D keyset can have a Full Duplex Speakerphone Module added. All ITPphones are half duplex speaker phones.4.35