Karel ST26 Use and care manual

04/2009
TECHNICAL REFERENCE AND USER GUIDE
4 LINE DISPLAY DIGITAL FEATURE
TELEPHONE SET

4LINEDISPLAYDIGITAL
FEATURETELEPHONESET
TECHNICAL
REFERENCE
AND
USER GUIDE
APRIL 2010

ST26 TTKK - Ver. AAD - 29.04.2010
KARELreservesthe righttomakemodificationsinproduct featuresmentionedinthis
documentfordevelopmentandimprovementpurposes, withoutpriornotice.Individual
products maypossess characteristics differentfromthosethathavebeenmentionedin
this document, due totheir differences insoftwareandhardwareversions.
Version Table
Software Version Date/Version of Guide
AAH 24.11.2008/AAA
AAL 30.01.2009/AAB
AAR 20.04.2009/AAC
AAV 29.04.2010/AAD

ISSUESTO PAY ATTENTIONTO
·Readthis guide carefullybeforeyouuseyourdeviceand keep it forlater
reference.
·Anymistakewiththeconnectionsinyourdevicemaydamageit oryourexchange.
Especiallythe connectiontothe exchangemust be madebythe Authorized
TechnicalServices. The explanationsaboutconnectionsinthe User’s Guidehave
beenintendedtogiveinformation only.
·Aconnection boxcomeswithyourdevice.The connectionsmust bemade as
described inthe installation chapter.
·Incaseyou need aconnectionofplug-outlettype,neverapplyelectric plugsand
outlets; useplugs, outlets andconnectioncomponents thatarespecific to
telephones.
·Donotmakeanyconnection otherthan the extension connection ofthe KAREL
telephone system.
·Thereis no part thatyoucan repair ormaintaininyourdevice;thereforecallthe
authorized technical serviceincaseof anymalfunction.
·Keep your deviceawayfrom direct sunlight.
·Donot let anyliquidsubstancespill on your device.
·Dothe exterior cleaning ofyour devicewithaslightlymoistenedpieceof cloth.
·Donot applyanychemicals for cleaning.
·Pleasecall yourauthorized dealerincaseyou wouldliketochangethe placeof
your device. Useits ownpackingtocarrythe device.
·Pleasedo notuseexteriorsignalforthe test operationsormaintenance.Any
signalwhichis used externallymaydamage your device.

PREFACE
Chapters inthis guidehavebeenprepared inordertopresentdetailed technical
information topeoplewhoneed technical-introduction-basedinformation aboutthe
ST26 DigitalFeaturePhones, inaddition togivingtechnicalinformationabout
programminganduseofthosetelephones. Bythis way,onecouldunderstand abilities
ofthe ST26 DigitalFeaturePhones, howit will beoperated inaccordancewith
customerdemandsand thingsthatshouldbe doneinordertooperatethemwithfull
performance.
The firstchapter-“TechnicalIntroduction”–It containstechnicalinformation aboutthe
hardwareand softwarestructuresofthe ST26 DigitalFeaturePhone.Information in
this chapter, forwhichknowledgeinmechanics, electricityand electronics maybe
prerequisite, aims tointroducestructureof the phone.
The second chapter–“Installation”–The methodstobe followed forthe installationof
the ST26 DigitalFeaturePhone areexplained.This chaptermust be read definitely
beforethe installationbythe personnelwho will perform the installation.
The thirdchapter–“ProgramFeatures” –This chaptergivesdetailed information about
the softwarefeaturesthatwillenrichfunctionsofthe ST26 DigitalFeaturePhone and
thatcouldbe applied tomeetdailycommunicationneedsofcustomers more
comprehensively.
The finalchapter-“Accessories” –This chaptergivesinformationaboutthe
accessories can be usedwithST30.
Best Regards,
KAREL

CONTENTS
TECHNICALINTRODUCTION..........................................................................1
INTRODUCTION ............................................................................................1
COMPATIBILITY ............................................................................................1
PARTS LISTONDELIVERY..........................................................................1
GENERALAPPEARANCE.............................................................................2
TECHNICALSPECIFICATIONS ....................................................................2
USERINTERFACE ........................................................................................3
LCDDISPLAY.............................................................................................3
DISPLAY KEYS ..........................................................................................3
SPECIALFUNCTIONKEYS.......................................................................4
Park:................................................................................................................... 4
PhoneBook: ...................................................................................................... 5
Menu: ................................................................................................................. 5
Flash: ................................................................................................................. 6
Transfer:............................................................................................................. 6
Redial:................................................................................................................ 6
NUMERICALKEY PAD ..............................................................................7
VOICE CONTROL KEYS............................................................................7
SPEEDDIALKEYS ....................................................................................8
FUNCTIONPROGRAMMINGFORTHE SPEEDDIALKEYS...................9
By“Function Menu............................................................................................. 9
CodeProgramming.......................................................................................... 11
By“FeatureCode” Menu:............................................................................. 11
By“AutoSetting” Menu: ............................................................................... 11
INSTALLATION .............................................................................................. 12
CONNECTIONPOINTS .............................................................................. 12
LINE CONNECTION.................................................................................... 13
PROGRAMFEATURES ................................................................................. 14
PROGRAMMINGMENUS........................................................................... 14
CALL OPTIONS........................................................................................... 15
Call Diversion ........................................................................................... 15
AutoDial................................................................................................... 16
Paging ...................................................................................................... 16
Missed Calls............................................................................................. 17
Answered ................................................................................................. 17
Dialed ....................................................................................................... 17
PHONE SETTINGS..................................................................................... 18
Key Settings ............................................................................................. 19
Extension ......................................................................................................... 19
Line .................................................................................................................. 20
ExecutiveKey .................................................................................................. 21
PrivatePool...................................................................................................... 21
Common Pool .................................................................................................. 21

Feature............................................................................................................. 22
FeatureCode ................................................................................................... 23
AutoSettings.................................................................................................... 23
DoNot Disturb.......................................................................................... 24
Reminder.................................................................................................. 24
Eprom Version ......................................................................................... 24
Lazy Mode................................................................................................ 25
PrivatePool Entry .................................................................................... 25
Language ................................................................................................. 25
Headphone............................................................................................... 25
Sounds& Alerts ....................................................................................... 26
Signal Beep Option: ......................................................................................... 26
KeypadSound: ................................................................................................ 26
Ringer Volume: ................................................................................................ 26
MicrophoneVolume: ........................................................................................ 26
Ring Tone: ....................................................................................................... 26
Ring Cadance: ................................................................................................. 26
Price ......................................................................................................... 26
Home Area Code ..................................................................................... 27
Line Access Code .................................................................................... 27
Enblock .................................................................................................... 28
PHONE SECURITY..................................................................................... 29
Password ................................................................................................. 29
Phone Lock .............................................................................................. 29
Phone Unlock........................................................................................... 29
MESSAGE ................................................................................................... 30
Absent Message ...................................................................................... 30
MessageListen ........................................................................................ 30
SYSTEMSETTINGS................................................................................... 31
Setting Time ............................................................................................. 31
Setting Date ............................................................................................. 31
Night Mode............................................................................................... 31
Common Pool Entry................................................................................. 31
PHONE BOOK............................................................................................. 32
Find .......................................................................................................... 32
Add........................................................................................................... 33
Change..................................................................................................... 33
Clear......................................................................................................... 34
APPENDIX................................................................................................... 35
ErrorMessages........................................................................................ 35
ACCESSORIES .............................................................................................. 36

1
TECHNICALINTRODUCTION
INTRODUCTION
ST26 is adigitaltelephonesetwith2-wire,whichis specialforthe KARELexchanges
ofDS series. It can be installed onlyon the newdigitalextension card(UPN) ofthe
KARELDS-series exchanges.
Withthe ST26 telephone sets:
•Users areprovided withthe facilityofperformingseveraloperationssuchascalling
back, autodialing,followme,conferencingand alarm setting,bypressing asinglekey
throughspecial-purposekeysand the displaythatareonthe telephone,withoutthe
necessitytoknowthe system-specific special codes.
•Activeservicesand call information,aswellasthe actionsthatthe usercantakefor
them, aredisplayedthrough the four-line LCD (liquidcrystal).
•Actionsthatcan be takenforthe activeservicesandthe callinformation,whichare
indicated on the LCD display,arecarriedouteasilyand rapidlythroughfourkeyswith
special functions that arelocatedbelowthe display.
•One-touchextension and/orline calls canbe made overthe phonebookand
programmablekeys.
•Statusesofthe extensionsand/orlinesthathavebeenassignedtothosekeyscanbe
viewedthrough the lights (LED) intwocolors, whichareembeddedintothe
programmablekeys.
COMPATIBILITY
ST26 digitaltelephonesetis compatiblewiththe entireversionsofthe exchangesof
models DS series. It can be installed onlyon EX200 (0/16KoU)modulesofthe DS
series exchanges.
PARTS LIST ON DELIVERY
Parts included inthe ST26 package:
·ST26 telephone,
·Handset,
·Spiral cableof the handset,
·DatacablewithRJ11 connectors at twoends,
·Consoleconnectionbox,
·Technical ReferenceandUser Guide.

2
GENERALAPPEARANCE
TECHNICALSPECIFICATIONS
Weight: 900 gr
Dimensions: 217 mm x229 mm x86 mm
Operational Temperature: 0 oC - 40 oC
Storing Temperature: -20 oC - +60 oC
Humidity: 10- %80 (non-condensing)
DialingMethod: DTMF(Tone dialing)

3
USER INTERFACE
LCD DISPLAY
Information presentationdisplayis offourlineswith20 characters. The following
information thatfacilitatesusageis presentonthe LCDdisplay,whichindicatesthe
activefeatures of the telephone and the functions of the flexiblekeys at that moment:
•Date, time
•Entrytothe menu options, phonebook
•Activated services (suchas Auto-dial, FollowMeandRedial)
•Call information
•Action options that can be takenfor the activecall and service
DISPLAYKEYS
Thesekeysarelocatedbelowthedisplayand theyplayanimportantroleinusage of
ST26.
Actions that can becarriedout and/or informationthat can bereceived byauserwhile:
-a call / conversationis being made
-the telephone is beingprogrammed
-the telephone is onhook
arepresentedthrough the display.
Inordertocarryouttheseactionsand/oraccess thatinformation,the selectionand
navigationkeysarepressedaccording totheoptionsonthe display.Accordingtothe
information on thedisplay,anydesired option can be easilyaccessed bypressingone
ofthe selection keys. Besides, it is possibletobrowsethe menusflexiblybythe
navigationkeys.
Thesekeysareused foracceptingordeclining thealternativespresented tothe user
on the displayatthatmoment, ortheyareused foraccessing newalternatives.
Functionsthatwillbeactivatedbythosekeysortitleofthe information tobe accessed
areindicatedon thedisplay.Suchadisplaywillbeactualizedonlyif thereexists a
function programmed forthe keyorinformation tobe accessed through the key.For
example,if thereareoptionsnotmorethantwo,then the navigationkeysdonot
function.

4
Selection Keys:
Theyareusedforconfirming andactivating the caseindicated rightatthe top ofthe
displayatthatmoment. Functionofthe selectionkeyschange according tothe options
promptedon the display.
Navigation Keys:
Whileinprogrammingmode,the left navigation keyprovidesaccess tothe previous
mainmenu if it is pressedon mainmenus, and if it is pressed onsubmenus, thenthe
entireoptionsinthatsubmenuaredisplayed.Startingfromthe first submenudownto
the last one,the entireoptionscan be easilyreached;moreover, one goesback tothe
first submenu againafterthe last one,withoutexitingtothe mainmenu.However, if the
“Exit” option is confirmedthroughthe selection key,then one goesback tothe main
menu,wherethoseoptionsarelocated.Whilemaking changesinthe contentofthe
phone book, asthe cursorshifts one digit back, the entryis erasedbyonecharacteron
eachmove.
Through the rightnavigation key,oneproceedstothe nextoptionormessage fromthe
entiremainmenusandsubmenus(Provided thatthe character “>” hasalready
appearedon the display.) The entiremainmenusstarting fromthe first one downtothe
last aredisplayedand thenone returnstothe first mainmenu again,afterthe last
menu.It is alsopossibletobrowsethesubmenus, onceone hasamadeaselection in
the mainmenu and has proceeded tothe submenus.
SPECIALFUNCTION KEYS
• “Park”Key: If this keyis pressedduringan ongoinglinecall, thenthatline is
parked.If it is pressed whenthereis aparked line,on the otherhand,then the parked
linesareretrieved one byone.
• “Phone Book”Key: This keyactivatesthe phone bookandit providesaccess to
the entiretelephone records from that.
• “Menu”Key: This keyactivatesthe menusbywhichthetelephone is programmed
and it provides access tothe submenus.
• “Flash”Key: It puts an ongoingexternalorinternalcall on holdorputs aline on
holdback toconversation mode.
• “Transfer”Key: It functionsthe sameashangingup and thenpickingupphone.
Whilethereis alineon hold, it transfers the other ongoing call tothe line onhold.
• “Redial”Key: This keydials againthelast external number that has been called.
Park:
Lineconversationcan beparkedbypressingthis keyduring theconversation.And also
internalconversation canbe parked throughthis keyduringthe conversation.If it is
pressedwhenthereis aparked line,then it puts the parkedlineintoconversation

5
mode.Likewise,if this keyis pressedwhenthereis aparkedinternalcall, it puts the
internalcallintothe conversationmode.When thecall is parkedbyusing thatkey,
“HeldXXXX”messageand retrieveoptionforthe lineappearonthe display.The call
can be retrieved bypressing the “Retrieve”keyorbypressing the“Park” keyfora
secondtime.
If the “park” option displayedon LCD displayis pressed“ParkedLinesXXXX”message
will appear.
Acall can beparked morethan onceand morethan one line canbe parked atthe
sametime.When aline hasbeen parked,the telephonecan beusedindependently
fromthatexternalconversation,i.e., internalandexternalcalls can be madebymaking
useofthe entirefeatures. ForST26 users, if thereareparked line and alsoparked
internalcalland if the otherserviceis activated,theinternalline call will beretrievedin
turnwiththis key.
The firstcall whichis parked will be displayedinthe first rank of the park list.
Phone Book:
This keyprovidesaccess tothe telephone book, whichhasbeencreatedthroughthe
mainmenusthathavebeen accessed byusing the “Menu”keyorits optionon the
display,whichcontainsnamesandphonenumbers andoverwhichoperationson
thoseentries couldbecarriedout.
If thereis anyrecordinthis phonebook, thenthoserecords, whichareinalphabetical
order, aredirectlydisplayed.The recordsthatarepresentinthe telephoneatthattime
can be directlysearchedbynameornumberquerythrough the“Find”option onthat
display.(The phone bookis emptyatthe first useofthe telephone.) The otherrecords
can be displayedbythe navigationkeys.
Besides, the “Find”, “Add”, “Change”and“Clear” optionscan beaccessed overthe
navigationkeysafterselecting the“Up”option thatis onthe display.The otherrecords
can be displayedthrough the navigationkeys.
Inthe eventthatthereis norecord,onlythe “Add”and“Change”optionsaredisplayed.
The submenu title,named as“ConstantMessage”, can be accessedwhenthe
“Change”option is selected and the navigation keysareused.The expression withat
most 16 characters thatis enteredherewillbe displayed on the displayofthe
telephone duringoff-hookstate.Detailedinformation aboutthe phone bookhasbeen
presented inthe relevant section.
Menu:
It is used fordoingthe entirePhone Settings. The menu is enteredbypressingthis key
and thenonecan proceed tothe entiremainmenusand then tothe submenus, and the
navigationkeys can be usedfor movingwithinthosemenusor submenus, if necessary.
The telephone gets intothe busymode afterthe menu hasbeenentered and it remains
sountil the menuis exited.

6
Flash:
It is used forputting the calling partyonholdduringan internalorexternalcall. When it
is pressedforasecondtime,the call onholdis retrieved,orthe call canbe retrieved by
the “Retrieve” option that appears whenthe keyis pressed.
It drops the line whenit is used whilethe other partyhasnotyetpicked up the phone.A
singlecallcan beputon holdatatime.Thereis no limit forthe duration topress the
key;however, inthe eventthatthe linethathasbeenputon holdhasnotstill be
retrievedatthe end ofacertainperiodthatis determinedbythe exchange software,
the linemayautomaticallybe dropped.
Transfer:
It is used fortransferring anongoing call toanothercall thatis on hold.Inorderto
actualizethe transferoperation,first ofall the conversing partyshouldbe puton hold
byusingthe flashkeyorthe “Hold”/“Park” option on the display.Afterwards, the
numbertowhichthetransferoperation will be doneis dialed.At this point, the
operation is accomplished bypressing the transferkeybeforeorafterconversing with
the extension towhichthe call is tobe transferred.
Duringa“Transfer” operation done viaST26/DS200:
·A line cannot be transferredtoanother line.
·If it is the ST26 userwhohasstarted theconversation,then an extension cannot
be transferredtoaline.
·Onthe otherhand,if it is aline thathasstarted the conversation,thenthatline can
be transferredtoan extension.
Makinguseofthe transferoptionon the LCD displaywill alsoaccomplishthe transfer
operation followingthe samerules above.
Redial:
It dials againthelast numberthathasbeen dialed.This keyfunctionsthe samewayas
the “Redial” optionon the display.The differencebetween“Redial” and “Auto-dial” is
thatthe “Auto-dial” option automaticallycalls the otherpartyrepeatedlyuntil busyness
statusis over(Actually,atmost 16 times), whereasthe “Redial” optioncalls onlyonce.
When the “Redial” option is used,the line access codeand the dialednumberare
displayedtogether on ST26 display.

7
NUMERICALKEYPAD
It is composed of3x4(DTMF)keymatrix.Moreover, thesekeysareused fornumberor
character(letter, figureorsymbol) entryduring theoperationsrelated tothe “Phone
Book”. Grouping ofthe characters withrespect tothe keysareasfollows. Standards
thatapplyforsimilarapplicationshavebeen complied withforthis subject. If any
programmablekeyor “#” keyis pressedwhenthe letterentryis being madewithcapital
letters, the entryis switchedtothe small letters. Bythe sameway,if anyprogrammable
keyis pressedagain,smallletterentryswitchedtothe capitalletters. If the small letters
arestarted tousethe “^”will bedisplayedonthe top left side ofthe screen.(If any
programmablekeyis pressed whilethe cursorblinkingon theletterthe capitalletters
turnintothe small letters, small letters turnintothe numbers, numbers turnintothe
characters successively.)
Group of“1”: (space) 1$%&
Group of “2”: A B C 2# (abc)
Group of “3”: D E F3: (def)
Group of “4”: G H I4- (gh i)
Group of “5”: J K L5( (j k l)
Group of “6”: M N O 6) (m noö)
Group of “7”: P Q R S7 (pqr s)
Group of “8”: TU V 8 + (t uv)
Group of “9”: WXY Z9 (wxyz)
Group of “0”: 0 ®!?=
VOICECONTROLKEYS
Control of voicefeatures of ST26 arefulfilledbymaking useof four keys:
“I”Key:
(Handsfree:It is afeatureoftelephonethatit emits voicesintothe roomortransmits
voices insidethe roomtothe otherpartieswhilethe handsetis still onhook.) This is the
keywithred iconthatputs the telephone intothe“handsfree”statusand thatsignifies
this throughan embeddedLED. The keyis calledHFkey,and the LEDinside it is
calledHFLED.

8
IKeyperforms different functions indifferent cases. Theseare:
·When it is pressedwhilethe handsetis on hook, the telephone is picked upas
“handsfree”and the HFLED lights. Inthis case,anumbercan be dialed and a
conversation canbe made withoutlifting the handset. Pressing thekeyduring a
conversation terminates theconversation.
·The HFLED starts toblinkif it is pressed whiledialtoneorbusytoneis being
received overthehandsetorwhileaconversationis being made.If the handsetis
replaced beforetheHFLED goesout, then one continuestoreceivedialtone or
busytone,oronecango onwiththe conversation.The conversation is terminated
if the handset is replacedafter the HFLED has becomeoff.
·If the handsetis lifted during the handsetstatus, then the rest ofthe conversation
goes onviathe handset. Replacing the handset terminates the conversation.
·Whilethe handsetis on hook, inthe eventthatthis keyis pressed twice
consecutively,the otherpartycan be heardbothviathe handsetandthe HF
speaker. The oppositepartywouldhearthe thingsspoken viathe handsetonly,
butno voicewouldbe transmittedtothe oppositepartyviathe HFmicrophone.
The conversationterminates byreplacing the handset at this status.
·If “Headset” usage hasbeenactivatedthrough menu options, thenthis keymay
alsobeusedfor putting theheadset on line.
“-”Key: It is used todecreasethe levelofvoicereceived during conversationwhilein
the Handsfree mode.
“+”Key: It is used toincreasethe level of voicereceived during conversation whilein
the Handsfree mode.
“j” Key: The MUTE keywithablack icon,whichprovidesinterruptionofthe outgoing
voicesduringthe allconversationsandwhichsignifiesthatviathe LED inside it.
Pressingthe keyforasecond timewill maintainthe voicetransmission tothe opposite
partyagain.
SPEED DIALKEYS
Twofunctionscanbe programmed foreachofthe speed dialkeys, whichconsist of16
keyswithlights. Features that can beassignedtothesekeys throughprogramming:

9
·ExtensionNumber
·LineNumber
·PrivateandCommonPool Number
·Function Services(ServicessuchasFollowMe,Call Back, DoNotDisturb,
TelephoneLock, Conference, Night Mode, Pager Activation)
·Featurecodes (DS200 programming and user codes, suchas entryto
programmingbythecode877777, DoNot Disturbfunction bythe code 831.)
Theseassignments aredone tothe first orthe second functionsofthe keyduringthe
programentrydone bypressing the“menu”option.Assignmentis done tothe first
function if the keyis pressedforashort time,and it is done tothe second one if the key
is pressedforalongerperiod.Transition ofthe keytothefirst orsecond function is
indicated byashort oralong beep,respectively.Besides, the LED thatbelongstothe
keylights ingreen forthe first function and lights red forthe secondoneduring
programming.
When the keysthathavebeen programmed forextension,line,privateorcommon pool
arepressed, thesenumbers arecalleddirectly.
When the keysthathavebeen programmed forthe servicessuchasFollowMeand
Call Back arepressed,theseservicesareactivateddirectlyoranecessaryinputis
prompted. (Suchas the extensionnumber, towhichthe FollowMeaction will be carried
out.)
When the keys, towhich“UserCode”hasbeen numericallyassigned,arepressed,the
servicethathasbeendeterminedthrough the usercodeis activateddirectlyorthe
appropriatecodeis prompted.The FollowMeservice(85)and the extension numberto
whichtheforwardingwill be done wouldconstitutean examplefor that kind of usage.
FUNCTION PROGRAMMINGFOR THESPEEDDIAL
KEYS
This featureprovides for taking advantageofsomefunctionsthathavebeen definedfor
ST26 inthe exchange properties, bypressing asinglekey.Ausermayprogramfor
thosekeysthe featurespresentedbythe KARELtelephone branchexchange,which
s/he wouldusemost frequently.
Three differentmethodscan be employedforassigningfunctionstothe programmable
keysofthe ST26 telephone sets. Theseoperationsarecarriedoutthrough the
submenusofFeature,FeatureCode orAutoSettinginthe PhoneSettings>Key
Settings option.
By“Function Menu
Featuresmost frequentlyemployedbyusers areamong thoseoptions. The
programmingcan becarriedoutbyassigning desired onesoutofthe 9optionsthat
havebeenpresented inthe KeySettings>Featuresubmenu,inordertoapplythat
programmingoption.First the keytobe used is selected,then the desiredone outof
the 9presented functionsis broughttothe displaythroughthe right/left navigationkeys

10
and the programming is completed bythe“Accept” key.Theseselectionshavebeen
explained below:
·Follow MeKey: If this keyis pressedwhiledialtoneis beingreceived and then
if numberofanextension is entered,then forwarding tothatextension is
actualized and then red LED lights. If it is pressed againwhiledialtone is being
received, then the forwarding is cancelledandthe LED goes out.
·Call Back Key: If acalled extensionis busyornotansweringandif busytone is
received upon attempting toaccess aline,then thatextension/line is calledback
bypressing this keyand the appropriatered LEDlights. Inordertocancelthe call
back operation,the keyis pressed againwhiledialtone is receivedandthe LED
goes out.
·Do Not Disturb Key: It puts that extensionintothe “DoNotDisturb”mode if it is
pressedwhilereceiving dialtoneandthe red LED starts toblink. Inthatcase,
telephone ringsoncewhenthe extensionis called.If it is pressed againwhile
receiving dialtone,then the “DoNotDisturb”serviceis cancelledandthe LED
goes out.
·Phone Lock Key: If this keyis pressedwhiledialtoneis being received and
then apasswordis entered afterwards, then the telephone will be closedfor
externalcalls. The telephonewillbe openforexternalcalls again,if the procedure
is repeated inthatmode.The corresponding redLED is onwhilethe telephoneis
lockedandgoesoutwhenit is unlocked.
·ConferenceKey: During acall withan extensionorline,this keyis employed
forincludinganotherextension orline intothe conference.If aline is desired tobe
includedintothe conference,the line withwhichthe conversation is goingon is put
on holdbypressingthis keyandoneproceedstoconversation statuswiththe line
tobe included intothe conference.Atripleconferenceis established upon
pressing this keyagain.If it is an extension thatis tobeincluded intothe
conference,then thatextension is calledaftermakinghookflashduringthe call
withan extensionorline.The three partyconferencewill havebeenestablished
uponpressing this key,afterinitiating the conversation withthatextension.If
needed, the “Drop” option whichappears onthe LCDduring theconferencecanbe
used.At the timeofconferencethe “Mute”keycan be used inordertoprovide the
interruption ofthe outgoingvoice.Duringthe conferencewiththe extensionsor
linestheinformation ofthe ongoingconversationofthe extensionorlinewillbe
displayedon the LCD
·Night Mode Key: It can be employedonlythroughthe telephonesthathave
beendefined asthe operator. It puts the systemintotheNightMode when it is
pressedwhiledialtoneis being received and the LEDwillbe turned on.If it is
pressedagain, thenit puts the system intothe DayMode and the LED goes out.
·Message Listen Key: If thereis an EVM moduleon the systemandavoice
messageis left tothe extension,the LED ofthis keywill blinktoinform the user
thats/he hasgotanewmessage.All voicemessagesleft tothe usercan be
listened successivelyif the keyis pressed.If apasswordhasbeen definedbefore,

11
amessage“Pleaseenteryourpassword”willbe displayed whenthe message
listen keyis pressed.Afterentering thepasswordthe voicemessagescan be
listened.
·Page Key: Whenthis “Page”keyis pressed,the first functionsofthe all-
programmablespeed dialkeysbecomethe second functionsforthe samekeys.In
thatcasetwodifferentfunction statusesofeachkeyaredisplayed throughthe
LEDs. Innormaloperation,the LED lights inred forthe first page functionsand
lights ingreenforthe second page functions. Whenthe green LEDs areON, it
meansthe secondfunctionsofthe keysareactive.Moreover, whenthe green LED
lights, the character“^”will be seen inthe date/timelineofthe 4linedisplayand it
showsthatthe secondfunctionsofthe programmablekeysareactive.If thereis a
keyasa“page”keyandanotherkeyis desired toprogramaspage key,the first
and the second functionsofthe oldpage keyis directlyerased.At the first
initiation of the phone, the LED of page key(if exists) will light inred.
·Call CollectKey: When the useris busyorinaconversation,the incoming
internalorexternalcall canbe answered bypressingthis keyandatthattimethe
first call is dropped.
Code Programming
By“Feature Code” Menu:
The entirefunctionssupported bythe exchangecan beprogrammedforST26
telephone setthrough the Featurecodemenu.Anyeight-digit code can be assignedto
the programmablekeys. Thatcode couldbe one thatis related touser, suchasFollow
Me(85), one thatis relatedtothe operator, suchasWakeUpService(8389)orone
thatis related tothe systemsupervisor, suchasentrytothe exchange programming
(877777). If the enteredcodeis none ofthem, then it is taken asan extension number
and this extension numberis called directlywhenthis keyis used.Afteraccessingthe
KeySettings>Featurecodesubmenu,if one ofthe programmablekeysis selected,
one ofthe corresponding codesis enteredforthe “no=”option and thenif it is
confirmedthrough the “Accept” key,thenthe programwill havebeen assigned tothe
selectedkey.(Pleaserefertothe DS SeriesUser’s Guide forinformationrelatedtothe
functions supported bythe exchangeand thecodes toprogram them.)
By“Auto Setting” Menu:
InST26 telephonesets, possibilityofassigning differentfunctionstothe entirekeys
simultaneouslyis provided viathe AutoSetting option underthe KeySettingsmenu.
This featurewill be explained indetail laterinthe section “AutoSettings”. Viathe
automatic programming,about20 functionscan beprogrammedatthe sametime.
Thesefunctionscan bechangedlaterone byone,asalreadyexplainedinthe sections
above, or theycan becleared throughthe “Clear All?” option inthesamemenu.

12
INSTALLATION
CONNECTION POINTS
UnderST26,therearefiveconnectionpoints. Connectionsandtheir characteristics
havebeenillustrated below.
DSS CONNECTION: It has been reserved for futureuseor applications.
AUXILIARY CONNECTION: The connectionpointthatis required forprogramming
ST26 over computer. It has been reservedfor futureuseor applications.
LINE CONNECTION: Line connectionpoint of ST26.
HANDSETCONNECTION: Handset connectionpoint.
HEADSETCONNECTION: It is employed forconnecting headsetoptiontothe
telephone. The standardheadset couldbe obtainedfrom KAREL.