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CTI TC-2000 AK Series, Инструкция по эксплуатации

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3.23 Cancel Do Not Disturb

Format

 # * 70

Example

The user wants to cancel Do Not Disturb assignment.

3.24 Use Priority Access: 

*

#

Pick up 8008                            Input # * 003#               

8008 Priority Access 

                                                                                            and Monitor CO line 3

0 0

3

#

53

3.25 Broadcasting

Format

 # * 8

Description

Model HK,DK,VK allows to equip with amplifier to the Tone 

                       Output port in the Tone Board, the user can do broadcasting.
Example: The manager inform the employees to have meeting at 15:00pm.

*

#

Pick up his extension          Input # * 8            Broadcasting                Hang up

8

*  Allow any extension to broadcasting by this format.
*  Refer below amplifier connection chart

Digital

Music

Amplifier

AUX Input Port

Amplifier

Plug

Tone Board

Format:

# * 0 MN #

MN = Serial code of CO line will be monitored = 01 to 16
Example:Extension 8008 wants to access CO line 3 even it is using by other extension

Содержание TC-2000 AK Series

Страница 1: ...TC 2000 AK TC 2000 HK TC 2000 DK TC 2000 VK PABX Telephone Exchange Series Instruction Manual Instruction Manual Instruction Manual ...

Страница 2: ...ing Message Record For Auto Attendant Mode Outgoing Message Play Holding Music Playing Extension s To Access Only One Appointed CO Line Exclusive CO Line Of Authorized Extension s Extension Group CO Line Group Restricted Prefix Digits Licence Prefix Digits Extension Outgoing Class Extension Number Management Extension Make External Call Mode Extension External Call Time Limited Extension Monitor V...

Страница 3: ...ll Operator Busy Transfer Unconditional Transfer Boss and Secretary Function Use Extension By Password Do Not Disturb Use Priority Access Broadcasting Verify Extension NumberAnd Port Number Doorbell Doorlock Remote Program Section 4 Appendix System Programming List Operation PC Call Management Instruction PC Call Management Module Instruction Section 5 Appendix Key Telephone Brief Introduction 42 ...

Страница 4: ...tect service from telecom office 15 Internal Call Bill Memory and Clock to ensure system can record the bill even when PC Call Management software is not started 16 PC Voice Record Software optional 17 Remote Program function to make the maintenance easier TC 2000HK DK and VK series have below additional features 1 Card Expandable CO line Extension increase decrease freely 2 Power switch DK HK are...

Страница 5: ...de view 416AK Back View 308AK Back View LED Power Switch CO line port Extension port Power socket COM port Voice Record switch OGM PC voice record port Face View 1 3 Right Side View 6 7 8 1 1 Names Section 1 Basic System Construction ...

Страница 6: ...struction 2 1 Side View LED Power Switch Power Socket Power fuse External Music Input Port COM Port Voice Recorder port CO lines Extensions Expandable panel for rack mount optional Back up battery box 6v 4 5A h Battery optional Back View 4 5 8 9 7 3 6 10 Bottom View 11 12 11 12 ...

Страница 7: ...ly switch 3 CPU LED 4 CO line LED 5 Power supply socket 6 Fuse 2A 7 CPU board 4 TC 2000DK 1 2 3 4 5 6 7 8 9 10 11 13 12 Telephone Exchange 8 Tone board 9 No 1 and No 2 CO line expansion board 10 Extension expansion board 11 Power supply board 12 Expansion board Location Solt 13 Internal battery Optional ...

Страница 8: ...to 8064 7 External Back Up Battery Connect Port 8 Lightning Protector Grounding 9 Power Socket Power Switch 10 Cover Open Button 11 Computer COM Port Voice Monitor Record Port External Music Inputted Port Lightning Protector grounding Notes A1 A2are extensionA B1 B2 areextension B Connection Way Lightning Protector grounding Notes A1 A2 are extension A B1 B2 are extension B Connection Way External...

Страница 9: ... at well connecting 5 Extension port No 33 to No 48 Extension port of 8033 to 8048 each RJ11 port for connect with two extensions middle two lines A A as one extension the side lines B B as another extension Auto compatible with both of keyphone and normal telephone the maximum transmit distance between extension and PABX can be up to 1000 meters when lines at well connecting 6 Extension port No 4...

Страница 10: ...rder to prevent system is damaged 10 Cover Open Button Press these two bottons at the same time to open cover 11 Computer COM Port For connect with computer COM port in order can use our CTI Computer Telephony Integration software The ideal cable length between PC and PABX is less 100 meters Voice Monitor Record Port For connect with computer sound card in order can record phone conversation to co...

Страница 11: ...gnal Tone CO Line Tone from Local Telecom Office Internal Dial Tone 450Hz Continuous Square Wave Internal Ringing Tone 450Hz square wave 1sec on and 4sec off Internal Busy Tone 450Hz square wave 0 3sec on 0 3sec off Internal Verify Tone 450Hz square wave 1sec on Internal Error Tone 450Hz square wave 0 3sec on 0 3sec off Caller ID Receive DTMF FSK Bell 202 Send DTMF Power Supply AK AC220V 10 15VA H...

Страница 12: ...the same orientation Rj11 port port Aand port B 4 Make sure the telephone cablehas been inserted well impact it by plier Tone board is take on generatesinternal dial tone ringing tone false tone music and compile the extension dialing have many molectron be avoid the static when insert or remove the card Part Names 1 Volume Switch for Music on Holding 2 External Music Input pot Can adopt ordinary ...

Страница 13: ...ide CO line to prevent a damaging from thunder We recommend to install arrester In addition grounding connection to earth ground is very important to protect the system Thunder damaging is void warranty Extension board is connecting with internal telephone the system can build internal communication or external call by tone exchange system Maximum allowed connect with sixteen extension cards have ...

Страница 14: ...struction 1 4 System Connection Diagram Amplifier Voice Recorder Computer COM Port Junction Shelf Arrester CO line Extension AC 80v 260v MP3 External Music With creepage protection Arrester Junction Shelf Ground Wire VOIP Internet ...

Страница 15: ... water or oil may come into contact with system Unplug the system when change card draw or insert card vertically Adopt power switching input voltage is 80V 260V power switching only control DC power don t controlAC power 8 The system can be equipped with an external music source to replace internal built in music input signal voltage range is 0 5V 2V Voice Recorder port is exclusive for connect w...

Страница 16: ...gramming If without special remark here in manual extension number ABCD indicates extension current number not default extension number Any extension is capable connect with our key telephone plug and play when change single line telephone to key telephone however when change key telephone to single line telephone you are required to input format 0 on key telephone first otherwise system may doesn...

Страница 17: ...sword by Remote Program function 2 1 4 0 3 Pick up 8001 Input 01 1234 Du programming 1 Pick up 8001 unlock Input 0 2 0 0 0 0 Du Hang up 0 2 0 0 0 0 2 3 System Program Password Entry Format 01ABCD ABCD System Program Password Description Allows the user to enter system programming by system program password suppose the password is 1234 If the user has entered into the programming mode by password t...

Страница 18: ...ports are disable compatible with Key Phone 2 6 Extension Port Enable Disable To Compatible With Key Phone Key Phone 2 7 Disable Compatible Key Phone For All Extension Ports 15 Section 2 System Programming Format 3 1ABCDEFGH ABCDEFGH CO Line ports number No 1CO line card of DK model 1 to 8 Description Assigns which external CO line is connected to which CO line port Example The port 1 2 3 4 5 of N...

Страница 19: ... been connected the extensionA will access CO line 1 meanwhile extension B will access CO line 2 To reduce the CO lines are occupied by the outgoing calls we suggest to connect the high frequency used CO lines that for external call incoming to the higher CO line port 4 The CO line can be connected do not accord to the order for example we can connect CO line 1 2 5 6 7 8 leave the port 3 and 4 are...

Страница 20: ... Pick up 8001 unlock Input 2 0 Du Hang up 2 14 All CO lines At Auto Attendant Outgoing Message Format 2 1 mn mn CO line port number 01 16 Description Assign operator attendant mode for certain CO lines while other CO lines remain in auto attendant mode Example Assign CO 3 at operator attendan and assign remain CO lines at auto attendant mode Suggest to assign all CO lines at auto attendant mode be...

Страница 21: ...n remain CO lines at operator attendant mode 2 16 Certain CO Lines At Auto Attendant Mode 0 0 2 2 1 0 2 0 Pick up 8001 Input 21 Du Input 2002 Du Input 2 0 10 Hangup 1 2 Unlock Suggest to assign all CO lines at Operator attendant mode before this assignment to avoid conflicts with previous setting 7 8 Pick up 8001 unlock Input 87 0830 1200 0 Du 0 8 2 0 0 3 1 0 0 1 0 0 8 8 1 3 7 3 0 3 Hang up Input ...

Страница 22: ...put 89 271 1 6 Un lock 1 9 8 2 7 1 Hang up 1 This format is assign whole day attendant mode even if the appointed day has been assigned Period Attendant Mode it will not work 2 Example you can assign whole day at Auto Attedant on Sat Sun 8 00am to 12 00am 13 30pm to 17 30pm at operator attendant mode from Mon to Fri other times atAuto Attendant 3 When switch to assigned period attendant extension ...

Страница 23: ... Attendant Mode Format 12 mn abcd mn CO Line port number 01 16 abcd Current extension number Description The user can select which extension s must ring when there is an incoming call on an external CO line Example Assign Ext 8003 and 8031 to ring when external call on CO line 02 1 0 2 2 Pick up 8001 Input 12 028003 Du Input 12028031 Maximum allows have four ringing extensions for each CO line ple...

Страница 24: ...o 2 at AutoAttendant Mode The incoming call will be auto transferred to Operator No 2 when Operator No 1 is busy Example Assign extension 8026 to be Operator No 2 0 6 2 2 8 Pick up 8001 Input 26 8026 Du Hang up Unlock 6 At Auto attendant mode when external caller dial 0 his call will be transferred to Operator No 1 The incoming call will be auto transferred to Operator No 2 when Operator No 1 is b...

Страница 25: ...escription The unit will play out going message in the case of desired extension is busy If the external caller does not enter any correct extension number within a certain period then the call will be released OGM 3 We are sorry The line is no answer you could dial other extension number if you want to call the operator press 0 Description The unit will play an out going message in the case of de...

Страница 26: ...e volume switch has been adjusted to lowest 23 Section 2 System Programming Please refer to the schematic of Tone Board Record ON RecordOFF Right Side View of Model AK ON OFF Model DK Tone Board Format 2 3 N N 1 Play OGM 1 N 2 Play OGM 2 N 3 Play OGM 3 Description Listen to the Out Going Message OGM recording and to test the quality of the telephone PABX TC 2000DK and TC 2000VK Series have two set...

Страница 27: ...Input 41 07 8032 Du Hang up and unlock 2 Not allowed assign two CO lines for one extension maximum has only one CO line for each extension the last setting will overwrite the previous one Format 4 3 abcd abcd Extension number Description Cancel certain extension s to use only one appointed CO line Example Cancel extension 8032 to access only a designated CO line 2 30 Cancel Certain Extension s To ...

Страница 28: ...n number Description The exclusive CO line is only allowed accessed by authorized extension s Other extensions has not right to access it even if exclusive CO line is free but the authorized extension can access other idle CO line 0 3 2 4 0 8 1 Pick up 8001 Input 42 13 8008 Du Hang up and unlock Example Exclusive CO line 13 of extension 8008 assignment 8 Each exclusive CO line can have maximum of ...

Страница 29: ...102 We can use batch program way when extensions are have same format Refer to above example after input 47 you can continue to input extension and group number thereafter only when has wrong inputted or need do change should input 47 again Different groups can build internal communication but not allowed to use the CO line that belong to other group Refer page 28 The call can be transferred among...

Страница 30: ... Ext 8008 can access CO line 08 it is not allowed access CO line 09 but the incoming call on CO line 09 can be transferred to Ext 8008 2 Default Mode Group 0 2 37 Distribute Certain CO Line s To Different Group Format 48 MN G MN CO line port number 01 16 G Group number 0 9 Description To calculate the charge for different department we can distribute certain CO line s for each departments group On...

Страница 31: ... Please refer following diagram Related Feature Reference Example 2 Distribute extension A B C D to group 2 CO line 1 2 3 4 5 to group 2 Assign CO line 1 to be exclusively accessed by extension A and B other extensions have not right to access CO line 1 even if CO line 1 is free assign extension D to access only CO line 5 it has not right to access other CO lines even if other CO lines are free A ...

Страница 32: ...s Of Licence CO Line Number Format 57 G ABCD G Group of licence CO line number 7 9 ABCD Prefix digits of licence CO line number 1 4 digits 29 Section 2 System Programming Maximum have 20 pieces restricted prefix digits of each group Example Suppose the prefix digit of long distance call is 0 and assign 0 to group 3 To restrict the extension 8012 to dial long distance call G 3 Description Only perm...

Страница 33: ... 0 1 8 0 1 6 1 2 3 30 Section 2 System Programming 2 43 First Outgoing Class Of All Extensions Format 54 M M 0 Permit to dial Internal call and receive the call only M 1 6 Restrict to dial the numbers with prefix digits that in group 1 to 6 M 7 9 Permit to dial the numbers with prefix digits that in group 7 to 9 only 2 44 Second Outgoing Class Of Certain Extension Format 52 ABCD M ABCD Extension n...

Страница 34: ... class 7 other all extensions are class 2 Thus you can assign all extensions to class 2 first 54 2 then change Ext 8008 and 8012 to class 1 51 8008 1 51 8012 1 Ext 8015 8016 and 8018 to class 7 51 8015 7 51 8016 7 51 8018 7 Related Feature Reference 31 Section 2 System Programming 2 46 Cancel Outgoing Class Of Certain Extension Format 53 ABCD ABCD Extension number Example Cancel outgoing class of ...

Страница 35: ... 168 and 13 b First class of Ext B is class 2 M 2 second class is class 3 Thus Ext B is restrict to dial numbers with prefix digit 0 168 13 9500 193 c First class of Ext C is 7 second class has not been assigned Thus Ext C is permit to dial numbers with prefix digit 0757 020 010 only d First class of Extension D is 7 second class is 8 Thus Ext D is permit to dial the numbers with prefix digit0757 ...

Страница 36: ... 22 333 will be invalid only 1234 is enable You can assign four digits extension number for invalid numbers 33 Section 2 System Programming Default length of extension number is four digits Allow existing same length extension number for different prefix digits extension number Example Assign two digits for the extension number with prefix digit 4 5 7 To check the serial number of port connect Cal...

Страница 37: ... Direct External Dial Mode Access to CO line by dial 0 first N 0 means the extension will enter Internal line as soon as it is picked up need to dial 0 first to get the external dial tone before dial external number When N 0 the user can make internal call by dial desired extension number directly Direct access to CO line N 1 means the extension will enter external line as soon as it is picked up ...

Страница 38: ... receive external call The actual limited time has about 10seconds discrepancy from assigned time in order to counteract the dial time Aseries of short Beeps tone is sent in every 15seconds indicates leave last one minute Format 9 2 ABCD ABCD Extension number Description Limitless call time of certain extension Example Cancel the limited time of Ext 8012 2 57 Cancel External Call Time Limited Of C...

Страница 39: ... 6 MN A MN CO Line port number 01 16 A 0 OFF Disable A 1 ON Enable Example Enable auto record CO line 03 and CO line 12 2 62 Enable Disable Auto Record For Certain CO Line s 4 2 0 1 1 6 1 3 Pick up 8001 unlock Input 4 6 03 1 Du Input 12 1 Any calls via the assigned CO line the conversation will be recorded 2 61 Enable Disable Auto Record For All Extensions Format 4 5 A M 0 OFF Disable M 1 ON Diabl...

Страница 40: ...on the tone board please refer below chart Format 8 3 ABCD ABCD flash time 100ms to 2000ms Description FLASH means tap the hook switch fleetly it is as same as to lifts up handset apace after hang up Flash Time is the period since after hang up to re lift up handset If re lift up handset after assigned flash time the line will be released If re lift up handset in the assigned flash time the system...

Страница 41: ...ord Of All Extensions Format 94 Example Restore all extensions password to 1234 2 65 Change Extension Password Format 5 ABCD abcd ABCD The current extension password abcd The new password that you want to change to be Example Extension 8018 wants to change the password from 1234 to 2589 Pick up 8018 Input 5 1234 2589 Du Hang up 5 1 3 2 4 2 8 5 9 Default extension password is 1234 suggest to change...

Страница 42: ... start up Clear the useless call bill after system testing Example After debugging the PABX we need to clear some useless call bills Pick up 8001 unlock Input 96 00 Du Hang up 9 6 0 0 1 Call bills will not be restore after clear 2 This memory can store 2 000pcs to 2 5000pcs bills The capacity is decided by number length The user should transfer the bills in memory to PC often to avoid the capacity...

Страница 43: ...e is busy the user has to select CO line again To more convenient operating the user can make external call by dial second outward code thus the system will auto search free CO line start from MN Example Have seven normal CO lines port 1 to port 7 and five VOIP lines port 8 to port 12 MN 08 You can assign auto search VOIP CO line by dial 3 A 3 1 Prefix digit of extension number is not allowed as s...

Страница 44: ...le 9 4 Pick up 8001 unlock Input 49 80081 Du 8 0 8 0 1 Description Allows authorized extension to access certain C O line even it is using by other extension authorized user can monitor or join conversation to build three parties conference Example Allows extension 8008 to do priority access Note Should use this format to assign authorized Ext enable disable to use Priority Access function first u...

Страница 45: ...ut 8065 Internal talking Hang up 5 When use Key Phone the extension that has shortcut key its working state is shown on the LED 3 2 Extension Make Internal Call At Direct External Dial Mode Format ABCD ABCD extension number Description Dial to get internal dial tone before dial desired extension number Example The user of extension 8011 wants to make internal call to extension 8083 Extension 8011 ...

Страница 46: ...esired extension is free lifts up handset will auto re call destination extension Example Extension 8005 want to call extension 8008 but 8008 is busy 3 3 Extension Free Notice for intercom Format Tap hook switch 00 0 0 Input 00 8005 will ring with LCD display when 8008 is free 8005 Hang up 8005 hear music 8005 hear busy tone when 8008 is busy 8005 Tap hookswich Ext 8005 pick up handset and call 80...

Страница 47: ...er hear external dial tone Example B Non direct external dial mode extension 8008 make external call Pick up extension 8008 Dial 0 after hear internal dial tone Dial external number after hear external dial tone Example C The user of extension 8008 make external call by CO line 3 Pick up extension 8008 Dial 03 after hear internal dial tone Dial external number after hear external dial tone 1 In th...

Страница 48: ... non ringing extension to answer a call that is ringing on another extension Use 7 to pick up external calls to self group Use 9 to pick up external calls to any group Example Ext A and Ext B are in different group is ringing at the same time external calls are come in Ext C wants to pick up the call Suppose C andA are in the same group extension C can pick up the call to Aby format 7 45 Section 3...

Страница 49: ...g up Ext B doesn t answer within 25 seconds Ext Awill be reconnected to external caller and Ext B will stop ringing c Ext A hangs up and Ext B answers external caller within 25 seconds d Ext A hangs up but Ext B doesn t answer the external call within 25seconds The external caller will be transferred back to Ext A if Ais free If Ext A is busy The operator extension will ring if Ext A or operator E...

Страница 50: ...nal Call Transfer Format Hookswitch ABCD ABCD Desired extension number Description An extension transfer an internal call to another extension Ext A is receive an internal call from extension B Ext Acan transfer this call to Ext C Ext Awill build internal communication with Ext C after Ext C lifts handset Ext B is on holding Ext B cannot hear the conversation between Aand C at the moment whoever A...

Страница 51: ...48 Section 3 Operation 3 9 Internal Party Conference Among 3 Extensions Format Hook switch ABCD ABCD Desired extension number Description Ext A is receive an internal call from Ext B Ext Ais transfer call to another Ext C Ext A B and C will build three parties conference Whoever Aor C is hangs up the other party will remain communicate with Ext B Example Ext 8002 is talking with Ext 8065 they want...

Страница 52: ... ABCD Destination extension number Example Director Ext 8002 can assign busy transfer to his secretary Ext 8003 when Ext 8002 is busy other calls to Ext 8002 will be transferred to Ext 8003 Pick up 8118 Input 1 8119 Du Hang up 1 8 1 1 9 Only the last Busy Transfer assignment is valid When use Key Telephone can enter menu PROGRAM then select Working State to do assignment Suppose extension 8002 is ...

Страница 53: ... select Working State to do Clear 3 15 Cancel Unconditional Transfer Format 2 00 Pick up 8008 Input 6 8012 Du Hang up 6 8 1 0 2 3 16 Boss and Secretary Function Format 6 ABCD ABCD Extension number of secretary Example Director Ext 8008 can assign all incoming calls are transfer to secretary 8012 first to avoid some unimportant calls All the calls to director will be transferred to extension 8012 T...

Страница 54: ...l Extensions Format 98 Example Cancel boss and secretary function for all extensions by extension8001 Suggest to cancel boss and secretary function for all extensions before you want to do assignment for the most of extensions Should be operate on extension 8001 51 3 18 Cancel Boss and Secretary Function for Certain Extension Format 98 ABCD ABCD Extension number Example Cancel boss and secretary f...

Страница 55: ...external number will display on Key Phone If you want to answer the incoming call just need to lifts the handset 3 22 Do Not Disturb Format 71 Description Assign extension will not ring and send Busy Tone to the caller But the assigned extension still can make calls Format 3 ABCD ABCD Extension password Default pSassword is 1234 Description Lock your extension by password to avoid other users make...

Страница 56: ...Tone Output port in the Tone Board the user can do broadcasting Example The manager inform the employees to have meeting at 15 00pm Pick up his extension Input 8 Broadcasting Hang up 8 Allow any extension to broadcasting by this format Refer below amplifier connection chart Digital Music Amplifier AUX Input Port Amplifier Plug Tone Board Format 0 MN MN Serial code of CO line will be monitored 01 t...

Страница 57: ...l ring after hang up there are have seven digits showing in the monitor of Caller ID telephone The three leading digits are extension port number the last four digits are extension current number When the extension number less four digits use 0 to make up before extension number refer below chart 54 Section 3 Operation When use Key Telephone there is displaying extension Port Number and its curren...

Страница 58: ... 11 04 Hear Beep Input 12 04 8007 3 27 Unlock The Door By Extension Format Tap hookswitch 4 Description The assigned extension s will ring when visitor press doorbell pick up any one of ringing extensions can answer doorbell call and open the door Format 4 Description Unlock the door by any extension when nobody press doorbell Only TC 308AK has Door bell Door lock function Should well connecting d...

Страница 59: ...heard indicates wrong program please re progam 7 Please hang up your EXT8001after program Your extension should be connected with port 001 When your EXT 8001 has been restricted to make external call the dealer can make external call to you At Auto Attendant mode Th dealer can call your Ext 8001 directly after establish communication dealer can start programming according to above procedures At Op...

Страница 60: ...ely used by Ext ABCD 41 MN ABCD 42 MN ABCD Clear Ext ABCD access by CO line MN only Clear CO line MN is exclusively used by Ext ABCD Assign extension s to different group Assign CO Line s to different group 43 ABCD 44 MN 47 ABCD G 48 MN G Assign all extensions to same group Assign all CO Lines to same group 47 G 48 G Auto monitor record for specific extension Auto monitor record for specific CO li...

Страница 61: ...ime Second outward code assignment Clear second outward code Third outward code assignment Clear Third outward code 16 Section 4 Appendix PABX Port Compatible with Key Phone Single Line Phone Assignment Clear PABX Port Compatible with Key Phone Day and Night Service Period 1 22 Day and Night Service Period 2 87 ABCD EFGH M 88 ABCD EFGH M Auto Exchange Attendant Mode In Assigned Day 1 Auto Exchange...

Страница 62: ...Bill Charge and Delay Bill Charge modes 9 Call Bill Memory do not lose the bill when the PC is not working 10 Support PC Hard Disk Record 11 Default Password Operator 1234 Administrator 4321 59 Section 4 Appendix Extension make external call External call by select CO line MN Extension call to operator Internal Call Internal or External call transfer Internal or External call pick up Party confere...

Страница 63: ...nd CO line by move the Mouse Menus Unlock PBX set Charge Set Hotel User Phonebook Search Help About Exit PABX Setting Most of functions described in this manual can be programmed by PC Data Copy or Renew by Input and Output functions DataPackage transferred through internet byOutput function to realize remote programming and maintenance 60 Section 4 Appendix ...

Страница 64: ...posit Fluctuate Call Bill Lodging Charge and other fees Print the detail Call Bill Fund classify stat for different operator PC Voice Record Extension and CO line voice record lookup copy delete and cut management This is choice function 61 ...

Страница 65: ... for Vision Protection Call Waiting Number Dialing before lift up handset 48 pieces shortcut keys allowed choose expandable key board KB 96that has 96 pieces key to have maximum of 144 pieces key Various Working Mode Time Auto Answer 12 pieces music to distinguish which extension is ringing Dial Out Dial In Calls on Holding Retrieved Caller ID with name of Caller Intercom Small Message for confere...

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