Toshiba Strata Dk14, Dk40i, Dk424 General Description Manual

							726+,%$Telecommunication Systems Division
May 1999
Digital Business Telephone Solutions
General Description
Software Release 4.1
and ACD Software Release 3.1
Software Release 4.1 
						

							Publication InformationToshiba America Information Systems, Inc., Telecommunication Systems Division, 
reserves the right, without prior notice, to revise this information publication for any 
reason, including, but not limited to, utilization of new advances in the state of 
technical arts or to simply change the design of this document.
Further, Toshiba America Information Systems, Inc., Telecommunication Systems 
Division, also reserves the right, without prior notice, to make such changes in 
equipment design or components as engineering or manufacturing methods may 
warrant.
DKA-GD-GNDES-VE
4010445
Version E, May 1999
Version D, August 1998 
Version C, March 1998
Version B, October 1997
Version A.1, May 1997
Version A, March 1997© Copyright 1999
Toshiba America Information Systems, Inc. 
Telecommunication Systems Division
All rights reserved. No part of this manual, covered by the copyrights hereon, may be 
reproduced in any form or by any means—graphic, electronic, or mechanical, 
including recording, taping, photocopying, or information retrieval systems—without 
express written permission of the publisher of this material.
Strata AirLink and Call Center Viewer are trademarks of Toshiba America Information 
Systems, Inc. Stratagy is a registered trademark of Toshiba America Information 
Systems, Inc. Strata is a registered trademark of Toshiba Corporation.
Trademarks, registered trademarks, and service marks are the property of their 
respective owners.
Strata DK
General End User Information
The Strata DK Digital Business Telephone System is registered in accordance with the 
provisions of Part 68 of the Federal Communications Commission’s Rules and 
Regulations.
FCC RequirementsMeans of Connection: The Federal Communications Commission (FCC) has 
established rules which permit the Strata DK system to be connected directly to the 
telephone network. Connection points are provided by the telephone company—
connections for this type of customer-provided equipment will not be provided on coin 
lines. Connections to party lines are subject to state tariffs.
Incidence of Harm: If the system is malfunctioning, it may also be disrupting the 
telephone network. The system should be disconnected until the problem can be 
determined and repaired. If this is not done, the telephone company may temporarily 
disconnect service. If possible, they will notify you in advance, but, if advance notice is 
not practical, you will be notified as soon as possible. You will be informed of your 
right to file a complaint with the FCC.
Service or Repair: For service or repair, contact your local Toshiba telecommunications 
distributor. To obtain the nearest Toshiba telecommunications distributor in your area, 
call Toshiba America Information Systems, Inc., Telecommunication Systems Division 
in Irvine, CA (949) 583-3700.
Telephone Network Compatibility: The telephone company may make changes in its 
facilities, equipment, operations, and procedures. If such changes affect the 
compatibility or use of the Strata DK system, the telephone company will notify you in 
advance to give you an opportunity to maintain uninterrupted service.
Notification of Telephone Company: Before connecting a Strata DK system to the 
telephone network, the telephone company may request the following:
1. Your telephone number.
2. FCC registration number:
©Strata DK may be configured as a Key or Hybrid telephone system. The 
appropriate configuration for your system is dependent upon your operation of 
the system.
©If the operation of your system is only manual selection of outgoing lines, it may 
be registered as a Key telephone system.
©If your operation requires automatic selection of outgoing lines, such as dial 
access, Least Cost Routing, Pooled Line Buttons, etc., the system must be 
registered as a Hybrid telephone system. In addition to the above, certain 
features (tie Lines, Off-premises Stations, etc.) may also require Hybrid 
telephone system registration in some areas.
©If you are unsure of your type of operation and/or the appropriate FCC 
registration number, contact your local Toshiba telecommunications distributor 
for assistance.
DK14 and DK40i
Key system: 
CJ6MLA-74479-KF-EHybrid: CJ6MLA-74478-MF-EDK424
Hybrid: CJ69XA-10243-MF-EKey system: CJ69XA-10242-KF-EPBX: CJCHN-22757-PF-E3. Ringer equivalence number: 0.3B. The ringer equivalence number (REN) is useful 
to determine the quantity of devices which you may connect to your telephone line 
and still have all of those devices ring when your number is called. In most areas, 
but not all, the sum of the RENs of all devices connected to one line should not 
exceed five (5.0B). To be certain of the number of devices you may connect to your 
line, as determined by the REN, you should contact your local telephone company 
to ascertain the maximum REN for your calling area.4. Network connection information USOC jack required: RJ1CX, RJ2EX, RJ2GX, 
RJ48C, RJ48X, RJ11, RJ14C, RJ21X (see Network Requirements in this 
document). Items 2, 3 and 4 are also indicated on the equipment label.
Radio Frequency InterferenceWarning: This equipment generates, uses, and can radiate radio frequency energy and if 
not installed and used in accordance with the manufacturer’s instruction manual, may 
cause interference to radio communications. It has been tested and found to comply 
with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC 
Rules, which are designed to provide reasonable protection against such interference 
when operated in a commercial environment. Operation of this equipment in a 
residential area is likely to cause interference, in which case, the user, at his/her own 
expense, will be required to take whatever measures may be required to correct the 
interference.
This system is listed with Underwriters Laboratory.
UL Requirement: If wiring from any telephone exits the building or is 
subject to lightning or other electrical surges, then secondary protection 
is required. Secondary protection is also required on DID, OPS, and tie 
lines. (Additional information is provided in this manual.)
Important Notice — Music-On-HoldIn accordance with U.S. Copyright Law, a license may be required from 
the American Society of Composers, Authors and Publishers, or other similar 
organization, if radio or TV broadcasts are transmitted through the music-on-hold 
feature of this telecommunication system. Toshiba America Information Systems, Inc., 
hereby disclaims any liability arising out of the failure to obtain such a license.
CP01, Issue 8, Part I Section 14.1
Notice: The Industry Canada label identifies certified equipment. This certification 
means that the equipment meets certain telecommunications network protective, 
operational and safety requirements as prescribed in the appropriate Terminal 
Equipment Technical Requirements document(s). The Department does not guarantee 
the Equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be 
connected to the facilities of the local telecommunications company. The equipment 
must also be installed using an acceptable method of connection. The customer should 
be aware that compliance with the above conditions may not prevent degradation of 
service in some situations.
Repairs to certified equipment should be coordinated by a representative designated by 
the supplier. Any repairs or alterations made by the user to this equipment, or 
equipment malfunctions, may give the telecommunications company cause to request 
the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of 
the power utility, telephone lines and internal metallic water pipe system, if present, are 
connected together. This precaution may be particularly important in rural areas.
CAUTION!Users should not attempt to make such connections themselves, but 
should contact the appropriate electric inspection authority, or 
electrician, as appropriate.
CP01, Issue 8, Part I Section 14.2
Notice: The Ringer Equivalence Number (REN) assigned to each terminal device 
provides an indication of the maximum number of terminals allowed to be connected to 
a telephone interface. The terminal on an interface may consist of any combination of 
devices subject only to the requirement that the sum of the Ringer Equivalence 
Numbers of all the Devices does not exceed 5.
U
L® 
						

							Strata DK General Description 5/99i
Contents
Introduction
Organization ........................................................................................................................................... ix
Conventions............................................................................................................................................. x
Related Documents/Media ...................................................................................................................... x
Chapter 1 – Strata DK14
KSU Architecture .................................................................................................................................... 2
Digital Telephone/Central Office (CO) Line Circuits ...................................................................... 2
Optional Printed Circuit Boards .............................................................................................................. 3
Central Office Line/Digital Telephone Interface Unit (QCDU2) .................................................... 3
Standard Telephone Interface Unit (QSTU2)................................................................................... 3
DTMF Receiver/ABR Tone Detector Unit (QRCU3)...................................................................... 3
Auto Attendant Feature Key (QKYS1) ............................................................................................ 3
Serial Interface Board (WSIU1) ....................................................................................................... 3
Power Supply .......................................................................................................................................... 4
Reserve Power .................................................................................................................................. 4
Power Failure Interface .................................................................................................................... 4
Music-on-Hold (MOH) Interface ..................................................................................................... 5
Paging Interface ................................................................................................................................ 5
Flexible Relay Contacts .................................................................................................................... 5
Maximum Line/Station Configurations .................................................................................................. 5
Network Requirements............................................................................................................................ 5
Functional Block Diagram ...................................................................................................................... 6
System Technology ................................................................................................................................. 7
Pulse Code Modulation .................................................................................................................... 7
Custom Electronic Circuitry ............................................................................................................. 7
Stored Program Control .................................................................................................................... 7
Microprocessors................................................................................................................................ 7
Maintenance and Programming .............................................................................................................. 8
DKAdmin/DKBackup ...................................................................................................................... 8
Chapter 2 – Strata DK40i
Station and CO Lines .............................................................................................................................. 9
Peripherals ............................................................................................................................................. 10
Base KSU Architecture ......................................................................................................................... 11
Digital Telephone Circuits.............................................................................................................. 11
Central Office (CO) Line Circuits (TCOU/TDDU/TBSU) ............................................................ 11
ISDN BRI S/T Circuits (TBSU) ..................................................................................................... 12
Caller ID (TCIU2) .......................................................................................................................... 12
Standard Telephone Interface Unit (KSTU2)................................................................................. 12 
						

							Contents
Chapter 3 – Strata DK424
iiStrata DK General Description 5/99
DTMF/ABR Tone Detection Receiver (K5RCU and K5RCU2) ................................................... 12
Auto Attendant Feature Key (KKYS) ............................................................................................ 12
SMDR, SMDI, and Maintenance DKAdmin/Modem (TTY) Interface (TSIU) ............................. 12
Power Supply.................................................................................................................................. 13
Power Failure Interface .................................................................................................................. 14
Music-on-Hold Interface ................................................................................................................ 14
Expansion KSU Architecture ................................................................................................................ 14
Typical Line Configurations ................................................................................................................. 15
DK40i Line and Station Capacity................................................................................................... 15
Network Requirements.......................................................................................................................... 15
Functional Block Diagram .................................................................................................................... 16
System Technology ............................................................................................................................... 17
Pulse Code Modulation .................................................................................................................. 17
Custom Electronic Circuitry ........................................................................................................... 17
Stored Program Control .................................................................................................................. 17
Microprocessors.............................................................................................................................. 17
Maintenance and Programming ............................................................................................................ 17
DKAdmin/DKBackup .................................................................................................................... 17
Strata AirLink Wireless System ............................................................................................................ 18
Chapter 3 – Strata DK424
Architecture ........................................................................................................................................... 19
Base and Expansion Cabinets ......................................................................................................... 19
Expansion and Configuration ......................................................................................................... 20
Expansion Cabinets ........................................................................................................................ 20
Printed Circuit Boards (PCBs) ....................................................................................................... 21
Maximum Line/Station Capacities........................................................................................................ 22
Power Requirements ............................................................................................................................. 26
Floor Mount Hardware.......................................................................................................................... 28
Functional Block Diagrams................................................................................................................... 29
System Technology ............................................................................................................................... 32
Pulse Code Modulation .................................................................................................................. 32
Custom Electronic Circuitry ........................................................................................................... 32
Stored Program Control .................................................................................................................. 32
Microprocessors.............................................................................................................................. 32
Maintenance and Programming ............................................................................................................ 32
DKAdmin/DKBackup .................................................................................................................... 32
Strata AirLink Wireless System ............................................................................................................ 33
Chapter 4 – Universal Slot PCBs
Station PCBs ......................................................................................................................................... 35
Digital Telephone Interface Unit (PDKU2) ................................................................................... 35
Digital/Standard Telephone Interface Unit (RDSU) ...................................................................... 35
Strata AirLink Wireless Interface Unit (RWIU) ............................................................................ 36
CO Line/Digital Telephone Interface Unit (KCDU) (DK40i only) ............................................... 36
Electronic Telephone Interface Unit (PEKU) ................................................................................ 36
Standard/Electronic Telephone Interface Unit (PESU) .................................................................. 36
Standard Telephone Interface Unit (RSTU2) ................................................................................. 36 
						

							Contents
Chapter 5 – Stations and Peripherals
Strata DK General Description 5/99iii
Console PCBs........................................................................................................................................ 37
Attendant Console Interface Unit (RATU, DK424 only)............................................................... 37
CO Line PCBs ....................................................................................................................................... 37
Caller ID Interface Unit (RCIU2)................................................................................................... 37
Loop Start CO Line Interface Unit (RCOU) .................................................................................. 38
Ground/Loop Start Interface CO Line Interface Unit (RGLU2) .................................................... 38
Direct Inward Dialing Interface Unit (RDDU)............................................................................... 38
Tie Line Unit (REMU) ................................................................................................................... 38
T1/DS-1 Interface Unit (RDTU2) (DK424 only) ........................................................................... 38
ISDN Primary Rate Interface Unit (RPTU) (DK424 only) ............................................................ 39
ISDN S/T-type Basic Rate Interface Unit (RBSU) ........................................................................ 39
ISDN U-type Basic Rate Interface Unit (RBUU) (DK424 only) ................................................... 40
Enhanced 911 CAMA Trunk Interface Unit (RMCU/RCMS) (DK424 only) ............................... 40
Summary of PCBs and Subassemblies ................................................................................................. 40
Option Interface PCBs .......................................................................................................................... 43
Option Interface Unit (PIOU) ......................................................................................................... 43
Simplified Option Interface Unit (PIOUS)..................................................................................... 44
External Page Interface Unit (PEPU) .............................................................................................44
Single Serial Interface Unit (RSSU)............................................................................................... 45
Serial Interface Unit (RSIU, DK424 only) ..................................................................................... 46
Chapter 5 – Stations and Peripherals
Digital Telephones ................................................................................................................................ 48
Liquid Crystal Display (LCD) Telephones ........................................................................................... 50
Speakerphones....................................................................................................................................... 51
Peripherals ............................................................................................................................................. 52
Digital Telephone Upgrade Options ..................................................................................................... 53
Digital Add-on Module (DADM)...................................................................................................53
Integrated PC Interface (RPCI-DI) ................................................................................................. 53
Headset/Loud Ringing Bell Interface (HHEU) .............................................................................. 53
Speaker Off-hook Call Announce (DVSU) .................................................................................... 54
Stand-alone Data Interface Unit (PDIU-DS) ........................................................................................ 54
Cordless Digital Telephone (DKT2004-CT) ........................................................................................54
Strata AirLink Wireless Handset .......................................................................................................... 55
Features........................................................................................................................................... 55
PC Digital Telephone (PC-DKT) .......................................................................................................... 56
PC Attendant Console (DK-PCATT).................................................................................................... 57
Direct Station Selection (DSS) Console ............................................................................................... 58
Door Phone (MDFB)............................................................................................................................. 58
Door Phone and Lock Control Unit (DDCB) ....................................................................................... 59
External Speaker (HESB) ..................................................................................................................... 59
Toshiba Stratagy and Stratagy DK Processing .....................................................................................59
Cabling and Connectors ........................................................................................................................ 60
Station and Peripheral Specifications.................................................................................................... 60
Chapter 6 – Features
System Features .................................................................................................................................... 61
Abandoned Call Numbers .............................................................................................................. 61
Account Codes (Forced/Voluntary/Verified) ................................................................................. 61 
						

							Contents
Chapter 6 – Features
ivStrata DK General Description 5/99
Alarm Sensor (DK40i and DK424 only) ........................................................................................ 62
Alternate Answer Point .................................................................................................................. 62
Amplified Conference Interface ..................................................................................................... 62
Auto Attendant (Built-in) ............................................................................................................... 62
Automatic Call Distribution (ACD) (DK424 only)........................................................................ 62
Automatic Number Identification (ANI) ........................................................................................ 63
Automatic Release from Hold ........................................................................................................ 64
Background Music (BGM) ............................................................................................................. 64
Caller ID ......................................................................................................................................... 65
Centrex/PBX Compatible ............................................................................................................... 65
Centrex Ringing Repeat.................................................................................................................. 65
Computer Telephony Integration (CTI) ......................................................................................... 66
Conferencing .................................................................................................................................. 67
Credit Card Calling......................................................................................................................... 67
Data Switching ............................................................................................................................... 67
Day/Night Modes ........................................................................................................................... 67
Delayed Ringing ............................................................................................................................. 67
Dialed Number Identification Service (DNIS) (DK40i and DK424 only)..................................... 68
Direct Inward Dialing (DID) Lines (DK40i and DK424 only) ...................................................... 68
Direct Inward System Access (DISA) ............................................................................................ 69
Distinctive CO Line/Directory Number Ringing ........................................................................... 69
Door Lock Control.......................................................................................................................... 69
Door Phones (MDFB) .................................................................................................................... 69
DTMF Back Tone........................................................................................................................... 70
DTMF and Dial Pulse CO Line Compatible .................................................................................. 70
DTMF Signal Time (80/160 milliseconds) .................................................................................... 70
Emergency Ringdown .................................................................................................................... 70
Enhanced 911 (E911) Service ........................................................................................................ 70
External Page Zones ....................................................................................................................... 71
Flexible Button Assignment ........................................................................................................... 71
Flexible Directory Numbers ........................................................................................................... 71
Group Paging .................................................................................................................................. 71
Handsfree Directory Number Paths................................................................................................72
Hospitality Management Information System (HMIS) .................................................................. 72
Hotline Service ............................................................................................................................... 72
Integrated Services Digital Network (ISDN) ................................................................................. 73
Least Cost Routing (LCR) .............................................................................................................. 75
Line Groups .................................................................................................................................... 76
Line Queuing .................................................................................................................................. 76
Live System Programming ............................................................................................................. 76
Memory Protection ......................................................................................................................... 76
Message Waiting ............................................................................................................................ 76
Multiple Directory Numbers .......................................................................................................... 76
Multiple FCC Registration ............................................................................................................. 78
Music-on-hold (MOH) ................................................................................................................... 78
Night Ringing Over External Page ................................................................................................. 78
Night Ringing Over Selected Page Zones ...................................................................................... 78
Non-blocking Talk Paths ................................................................................................................ 78
Off-premises Station ....................................................................................................................... 78
Outgoing Call Restriction ............................................................................................................... 79 
						

							Contents
Chapter 6 – Features
Strata DK General Description 5/99v
Pooled CO Line Button .................................................................................................................. 79
Power Failure Transfer ................................................................................................................... 79
Privacy/Non-privacy Calling .......................................................................................................... 79
Relay Service .................................................................................................................................. 79
Remote Administration/Maintenance ............................................................................................. 80
Reserve Power ................................................................................................................................ 80
Simplified Message Desk Interface (SMDI) .................................................................................. 80
Speed Dial....................................................................................................................................... 81
Station Hunting ............................................................................................................................... 81
Station Message Detail Recording (SMDR) .................................................................................. 82
Station Relocation........................................................................................................................... 82
StrataControl (DK40i and DK424 only) ........................................................................................ 82
System Programming through a Station ......................................................................................... 83
System Program Administration Software (DKAdmin) ................................................................ 83
T1 Interface (DK424 only) ............................................................................................................. 83
Tandem CO Line Connections ....................................................................................................... 83
Tenant Service ................................................................................................................................ 84
Tie Lines ......................................................................................................................................... 84
Toll Restriction Override by System Speed Dial ........................................................................... 85
Traveling Class of Service.............................................................................................................. 85
Unrestricted Call Transfer to Directory Numbers .......................................................................... 85
Voice First or Tone Signaling ........................................................................................................ 85
Voice Mail Integration.................................................................................................................... 85
Station Features ..................................................................................................................................... 90
Account Code Button ..................................................................................................................... 90
Add-on Module (DADM)............................................................................................................... 90
Alert Signal Button ......................................................................................................................... 90
Automatic Busy Redial (ABR) ....................................................................................................... 90
Automatic Callback (ACB) ............................................................................................................ 90
Automatic Hold .............................................................................................................................. 90
Automatic Line Selection ............................................................................................................... 91
Background Music (BGM) with Station Control ........................................................................... 91
Busy Override ................................................................................................................................. 91
Busy Station Transfer/Busy Station Ringing.................................................................................. 91
Call Forwarding .............................................................................................................................. 91
Call Park Orbits .............................................................................................................................. 92
Call Pickup ..................................................................................................................................... 93
Call Pickup Groups......................................................................................................................... 93
Call Transfer with Camp-on ........................................................................................................... 93
Call Transfer Immediate ................................................................................................................. 93
Call Transfer Music or Ringing Option..........................................................................................94
Call Transfer Recall ........................................................................................................................ 94
Centrex/PBX Features .................................................................................................................... 94
Conferencing .................................................................................................................................. 94
Continuous Dual-tone Multi-frequency (DTMF) Tone.................................................................. 94
Data Call Button ............................................................................................................................. 94
Direct Station Selection (DSS) Buttons..........................................................................................94
Direct Station Selection (DSS) Console Features .......................................................................... 94
Directory Number [DN] Buttons .................................................................................................... 95
DISA Security Code Revision ........................................................................................................ 95 
						

							Contents
Chapter 6 – Features
viStrata DK General Description 5/99
Distinctive LED Color and Flash Indications................................................................................. 95
Distinctive Station Ringing ............................................................................................................ 95
Do Not Disturb (DND) ................................................................................................................... 95
Do Not Disturb (DND) Override .................................................................................................... 95
DP/DTMF Mode Change ............................................................................................................... 95
Exclusive Hold ............................................................................................................................... 95
Executive Override ......................................................................................................................... 96
Feature Prompting with Soft Keys ................................................................................................. 96
Flash Button.................................................................................................................................... 96
Handsfree Answerback ................................................................................................................... 96
Hearing Aid Compatible................................................................................................................. 96
Liquid Crystal Display (LCD) Features ......................................................................................... 96
Microphone Cut-off Button ............................................................................................................ 96
Modem Button ................................................................................................................................ 96
Modular Handset and Line Cords................................................................................................... 96
Modular Headset............................................................................................................................. 97
Off-hook Call Announce (OCA) ....................................................................................................97
On-hook Dialing ............................................................................................................................. 97
Personal Computer Interface (RPCI-DI) ........................................................................................ 98
Pooled Line Buttons ....................................................................................................................... 98
Private CO Lines ............................................................................................................................ 98
Push-button Dialing ........................................................................................................................ 98
Release Button ................................................................................................................................ 98
Release/Answer Button .................................................................................................................. 98
Remote Retrieval of Held/Parked Calls..........................................................................................98
Repeat Last Number Dialed ........................................................................................................... 98
Ringing Line Preference ................................................................................................................. 98
Saved Number Redial ..................................................................................................................... 98
Speed Dial Buttons ......................................................................................................................... 99
Telephone Application Programming Interface (TAPI) Compatibility ......................................... 99
Timed Reminders ........................................................................................................................... 99
Toll Restriction Override Code Revision ....................................................................................... 99
User Programmable Feature Buttons..............................................................................................99
PC Attendant Console Features .......................................................................................................... 102
Answer Button .............................................................................................................................. 102
Answer Priority............................................................................................................................. 102
Answer Prompting ........................................................................................................................ 102
Attendant Conference Setup ......................................................................................................... 102
Auto Day/Night Mode Switching ................................................................................................. 102
Auto Dialing ................................................................................................................................. 102
Busy Lamp Field (BLF) Display ..................................................................................................102
Call Waiting Count ....................................................................................................................... 103
Color CRT Display ....................................................................................................................... 103
Dial “O” For Attendant................................................................................................................. 103
Dial Outside Number For Station User ........................................................................................ 103
Direct Station Selection (DSS) ..................................................................................................... 103
Directory Display and Dialing...................................................................................................... 103
DTMF Signaling from Dial Pad ...................................................................................................103
Emergency Calls ........................................................................................................................... 103
Emergency Page ........................................................................................................................... 103 
						

							Contents
Chapter 6 – Features
Strata DK General Description 5/99vii
Feature On-Line Help ................................................................................................................... 104
Feature Prompting with Soft Keys ...............................................................................................104
Flexible Programmable Buttons ...................................................................................................104
Headset Operation ........................................................................................................................ 104
Hold Button .................................................................................................................................. 104
Hold Timer Display ...................................................................................................................... 104
Incoming Call Identification......................................................................................................... 104
Incoming Call Statistics ................................................................................................................ 104
Interposition Call Transfer............................................................................................................ 105
Join Button.................................................................................................................................... 105
Keyboard or Mouse Operation .....................................................................................................105
Load Sharing................................................................................................................................. 105
Loop Hold Display ....................................................................................................................... 105
Message Center............................................................................................................................. 105
Multi-tasking ................................................................................................................................ 105
Name or Number Dialing ............................................................................................................. 106
Overflow ....................................................................................................................................... 106
Override ........................................................................................................................................ 106
Position Busy Mode...................................................................................................................... 106
Release Button .............................................................................................................................. 106
Speed Dial Calling ........................................................................................................................ 106
Split/Switch Button....................................................................................................................... 107
Three-way Calling ........................................................................................................................ 107
Through Dialing ........................................................................................................................... 107
Transfer Direct to Voice Mail ...................................................................................................... 107
Trunk Group Busy Indication ....................................................................................................... 107
Trunk Group Control .................................................................................................................... 107
Volume Control ............................................................................................................................ 107
Windows PC Operation ................................................................................................................ 107
Appendix   ............................................................................................................................................. 109
Network Requirements........................................................................................................................ 110
Customer-supplied Peripherals and Interfaces ....................................................................................111
Station Specifications .......................................................................................................................... 112
Glossary  ............................................................................................................................................... 117
Index ....................................................................................................................................................... 121 
						

							Contents
Chapter 6 – Features
viiiStrata DK General Description 5/99