Toshiba Strata Dk14, Dk40i, Dk424 General Description Manual

							Features
System Features
Strata DK Feature Description 5/9937
Delayed Ringing
A ringing delay of 12 or 24 seconds can be programmed for each CO line that rings at a given 
station. For example, an incoming CO line can be programmed to ring at one station (or a group of 
stations) immediately when the call comes in, and at a second station (or group of stations) 12 or 
24 seconds later. It can be applied to ringing assignments for Day 1, Day 2, and Night ringing 
modes. See “Night Transfer (Day/Night Modes)” for more information.
The Auto Attendant can be programmed to answer CO lines, either 12 or 24 seconds after stations 
have been ringing. In this case, the telephones that initially ring, stop ringing when the Auto 
Attendant answers.
For multiple DNs, the same capability as above exists for ground or loop start CO lines. For 
internal, DID or Tie line calls, a different delayed ringing controlled by different system programs 
is available. This means that secondary DNs can ring delayed after the PDN or PhDN. Or, the SDN 
can ring first, followed by delayed ringing of 12 or 24 seconds at the PDN or PhDN.
Benefits
Improves call handling and call coverage by providing one or more alternate answering positions 
for any incoming CO line or DN appearances. Calls have a greater chance of being answered 
promptly.
Because of the delay in ringing, employees at alternate answering stations are not disturbed by 
ringing while they wait to see if the called station answers. If the line rings at their station, they 
know they should answer it. Delayed ringing on multiple DNs is perfect for “Boss/Secretary” call 
coverage.
System Availability
Standard on Strata DK14/DK40i/DK424 
						

							Features
System Features
38Strata DK Feature Description 5/99
Dialed Number Identification Service (DNIS) 
DNIS identifies the called number and displays it on the LCDs of ringing telephones. The DK424 
compares the received digits (DNIS tag) to a program table that determines how to route the call 
and what display to provide. A 16-character alpha/numeric identifier is displayed on the ringing 
telephone’s LCD or Attendant Console display.
DNIS digits can also be sent to an application computer. DNIS 
names are stored within the Strata DK as defined by the user and 
programmed into Strata DK system programming. The names 
display on direct, incoming, transferred, and call forwarded 
calls. This enables calls to be answered appropriately by type of 
call. A DNIS display is shown below:
Figure 3 shows a sample overview of the call flow provided by the Strata DK DNIS capability.
DNIS is supported on digital T1 or analog DID and Tie lines. DNIS is typically used with “1-800” 
type of calls using long distance carriers over T1, but can also be provided over analog DID and 
Tie line circuits.
It is important to note that the Strata DK DNIS feature can treat all incoming local DID and Tie 
line calls the same. It can treat them as incoming DNIS long distance 1-800 calls for the purpose of 
routing these calls through the DNIS tables in the Strata DK. This is what makes DNIS such a 
flexible feature.
DNIS enables multiple numbers to ring into the same line or line group, providing optimum trunk 
usage as well as helpful called number/name identification information. This provides much more 
efficient usage of lines than the traditional usage of 800 numbers. Traditionally, each 800 number 
was assigned to its own line group, often resulting in a large number of under-used lines. The 
Strata DK DNIS capability solves this problem by using each DNIS line on an as-needed basis for 
different 800 number calls.
DNIS data is routed to DNs that can have multiple appearances, Distributed Hunt groups, ACD 
groups (DK424 only), and external network numbers through external call routing. DNIS digits 
can be received independently or simultaneously with ANI digits.
Each DNIS number can have its own voice mail ID code and can be routed to different 
destinations during Day/Day2/Night mode.
The DK424 supports 500, 350, 200 DNIS numbers and 300, 200, 100 telephone network numbers 
for the RCTUE/F, RCTUC/D, RCTUBA/BB, RCTUA, respectively. The DK40i supports 200.
System Availability
Unavailable on Strata DK14
Standard for dial pulse DNIS
Optional on DK40i/DK424 with DTMF DNIS
Requirements
Typically requires DTMF receivers
GINZU KNI FE  S ALE
LINE 3 RINGING   
0960 
						

							Features
System Features
Strata DK Feature Description 5/9939
v
Figure 3 DNIS Examples
Day 1 
ExampleNormal
Routing
Incoming 
NumberDay 1 
DestinationLCD Display
1209 201 Sales Dept
1210 202 Service Dept
1211 225 Credit Dept
1212 310 Production Dept
1213 350 Documentation
1214 555 Tech. Support
1215 420 Marketing
1216 430 Administration
1217 502 Engineering
1218 271 National Accts
Day 2 
ExampleRouting to
Other Offices Still Open
Incoming 
NumberDay 2 
DestinationLCD Display
1209 801-1209 Sales Dept
1210 801-1210 Service Dept
1211 225 Credit Dept
1212 802-1212 Production Dept
1213 350 Documentation
1214 803-1214 Tech. Support
1215 420 Marketing
1216 430 Administration
1217 502 Engineering
1218 802-1218 National Accts
Night 
ExampleRouting to
Outside Answering Service
Incoming 
NumberNight LCD Display
1209 1-714-555-2222 Company Name
1210 1-714-555-2222 Company Name
1211 1-714-555-2222 Company Name
1212 1-714-555-2222 Company Name
1213 1-714-555-2222 Company Name
1214 1-714-555-2222 Company Name
1215 1-714-555-2222 Company Name
1216 1-714-555-2222 Company Name
1217 1-714-555-2222 Company Name
1218 1-714-555-2222 Company Name
1219 1-714-555-2222 Company Name
1220 1-714-555-2222 Company Name
Destination can be:
•  ACD group number (DK424 only)
•  Distributed Hunt group number
•  Station Directory Number
•  Attendant Console
•  Voice Mail or Auto Attendant port*
•  External telephone network number
*
Stand-alone Auto Attendant, not Strata DK built-in Auto Attendant.
800-556-1212
800-556-1212
1212 CO
CO
1212
Strata DKCaller dials the
telephone number.
The telephone company
CO receives and
passes on the 
full number.
The local CO sends
the last four digits
to the Strata DK.
The Strata DK compares
received digits with the 
programmed DNIS table to
determine routing and LCD
display.
3033 
						

							Features
System Features
40Strata DK Feature Description 5/99
External Telephone Network Numbers
All DNIS/DID/Tie numbers that ring into the Strata DK can be routed externally to any outside 
telephone number. Depending on the application, the caller DNIS name may be passed to the 
destination Strata DK when routed over the user’s end-to-end telephone network.
Voice Mail
If assigned in the system database, incoming calls for each unique DNIS/DID/Tie number can be 
directly routed or call forwarded to a designated voice mailbox. This enables callers of each DNIS/
DID/Tie number to receive immediate, personal custom greetings. This feature is available using 
in-band integration, but not available using SMDI.
Benefits
Enables the easy answering of calls appropriate to the type of call with the helpful call 
identification information. For example, this is very helpful for answering services, executive 
suites, or multiple product line sales applications. Also, optimum trunk usage saves money by 
providing the same level of service with fewer “1-800” type lines. 
						

							Features
System Features
Strata DK Feature Description 5/9941
Direct Inward Dialing (DID) 
DID enables incoming calls to ring a specific DN, or any number of stations which share a 
common DN, without going through the answering position. Calls over a single DID line can reach 
any one of a number of stations, ACD groups, or Distributed Hunt groups, depending upon the last 
four digits of the telephone number dialed. DID lines can use DNIS programs to provide DID with 
all DNIS features.
Each DID line has a single office code and a block of extension numbers that can individually ring 
stations as assigned in system programming. DID lines can directly access the remote maintenance 
modem, but not the Strata DK built-in Auto Attendant.
DID lines can optionally provide automatic camp-on busy when callers dial a busy station on 
incoming DID calls. This feature provides a camp-on tone and distinctive LED flash at the busy 
station. 
If a second DID call is received at a busy station that has only one PDN button, the station user 
hears muted camp-on tone, and the second call camps-on (assuming camp-on has been turned on). 
If camp-on is off, the second caller hears busy tone unless forwarded to another station.
If a second DID call is received at a busy station that has more than one primary PDN button, the 
station user has the option of hearing muted camp-on tone and the second call camp-on, or the 
second call rings continuously on the other PDN button. This enables the station user to answer 
multiple calls to their DID number, including transferred calls. Two appearances of the PDN are 
recommended for this operation. Up to four PDN appearances may be used for some applications.
Outgoing calls can be made on two-way DID lines. However, ABR is not supported for those two-
way lines. DID lines can be either DTMF or dial pulse signaling. Also note that a secondary 
protector is required for each DID circuit. 
DID calls call forward externally if the station has Call-Forward External activated.
DID lines can be provided through analog circuits on the TDDU and RDDU interface or through 
digital circuits on the T1/DS-1 RDTU interface. An optional DTMF tone receiver (K5RCU or 
RRCS) is typically required for DID line DTMF operation.
Benefits
Provides efficient, direct calling to individual stations without going through the answer position 
and reduces the load on call answering positions. It also gives “private line” service to many 
individuals at a lower cost.
System Availability
Unavailable on DK14
Optional on DK40i/DK424
Requirements
Typicall requires DTMF tone receivers 
						

							Features
System Features
42Strata DK Feature Description 5/99
Direct Inward System Access (DISA) 
By calling in on a specific telephone number assigned to DISA, callers are connected directly to 
the Strata DK system and can dial internal stations or outgoing CO lines without going through the 
Attendant.
The caller dials the CO line number for DISA and hears two rings. Then a tone sounds for nine 
seconds, during which the caller dials a station number or the access code for a specific outgoing 
CO line or line group (“9” for LCR is not enabled). If the station or CO line is busy, the caller can 
dial another station or CO line. If no station number or CO line access code is dialed and the nine-
second interval elapses, the call is transferred to a pre-assigned ringing arrangement (Day, Day2, 
or Night).
An optional DISA security code (1~15 digits) can be programmed and is highly recommended in 
all DISA applications. When the security code is programmed, the caller must enter it in order to 
make outgoing DISA calls on CO lines. The security code is not required to dial internal stations. 
Certain digital telephones selected in programming can revise the DISA security code.
A caller can also be required to enter a forced/verified account code (1~15 digits), along with the 
DISA security code, to access to an outgoing CO line through the system. This can be used as a 
secondary level of access security.
Strata DK systems can provide a DISA class of service to CO lines, which enables Toll Restriction 
to be applied to DISA CO line calls. For example, outgoing CO line calls could be restricted to 
local calls only when accessed through DISA. Any number of CO lines can be programmed with 
the DISA feature. CO lines can be programmed as normal lines during daytime operation and 
DISA lines at night.
The DISA feature can be accessed from the Strata DK built-in Auto Attendant by dialing “*” 
during the Auto Attendant greeting. Whenever using the DK built-in Auto Attendant, the system 
DISA security code should be used to prevent unauthorized calls through (into and out of) the 
Strata DK system. 
Benefits
Saves money because employees can use the company’s calling network even when they are not in 
the office. Saves time because employees can call directly into the desired station without waiting 
for the Attendant to answer. Reduces the Attendant’s incoming call load and enhances service. 
Before and after hours, family members and others can use DISA to directly dial an employee’s 
station, improving the chances that the employee receives the call.
System Availability
Optional on Strata DK14/DK40i/DK424
Requirements
DTMF tone receivers
Loop and ground start CO lines can be 
DISA programmed, but not DID and Tie 
lines 
						

							Features
System Features
Strata DK Feature Description 5/9943
Distinctive CO Line/Internal Ringing
Incoming CO lines ring with a different ring cadence than do internal intercom/DN calls. Users 
can easily distinguish the type of call, even when the telephone is not in view. This feature works 
with digital, electronic, or standard telephones.
Benefits
Conveniently identifies the type of call ringing the station. The station user can answer with an 
appropriate greeting. 
System Availability
Standard on Strata DK14/DK40i/ DK424 
						

							Features
System Features
44Strata DK Feature Description 5/99
Door Lock Control 
The Door Lock Control feature enables any telephone programmed with the Door Unlock button 
to unlock a door. Pressing the button activates the electronic door lock, and the lock opens for three 
to six seconds as specified in programming. The electronic door lock mechanism must be supplied 
by the customer. The number of locks each system supports is:
©DK14 – up to two locks
©DK40i – up to three locks
©DK424 – up to four locks with the RCTUA; all other processors support up to five locks
Benefits
Provides a great convenience by eliminating the need for extra equipment to remotely control the 
lock, or the need to physically get up and go to the door to open it. 
System Availability
Optional on Strata DK14/DK40i/DK424
Requirements
DDCB PCB
DK40i/DK424 can use PIOU, PIOUS, or 
PEPU 
						

							Features
System Features
Strata DK Feature Description 5/9945
Door Phone
The optional door phone/monitor station is an external/remote two-way speaker box which has a 
direct voice link to a station. A door phone is frequently mounted near a building entrance and 
associated with a customer-provided door lock to help screen visitors. Pressing the button on a 
door phone sends a distinctive ringing only to idle digital or electronic stations which have been 
programmed to receive ringing from that door phone.
If all stations are busy, a muted ring is sent to the lowest numbered station programmed to ring. 
When a station answers, it is automatically connected to the door phone. Door phones can be 
programmed to ring over external page when the system is in Night mode.
A station can dial an individual door phone/monitor station and either converse with someone at 
the door phone, or simply monitor conversation or sound at the door phone. No warning tone is 
heard at the door phone/monitor station when it is called by a station.
Door phones are supported by the door phone/lock control box (DDCB) external module. One 
control box supports up to three door phones. The DDCB requires one DKT station circuit on a 
PDKU, RDSU, KCDU, or QCDU.
Door phones can be assigned to ring PDNs and/or PhDNs. The number of door phones is each 
system supports is:
©DK14 – up to six door phones
©DK40i – up to nine door phones
©DK424 – up to nine door phones with RCTUA, and up to twelve door phones with all other 
processors
Benefits
Increases building security and employee safety, especially after hours. It can also provide a “hot 
line” calling link between an office and such facilities as a warehouse or laboratory.
System Availability
Optional on Strata DK14/DK40i/DK424 that 
require DDCB PCB 
						

							Features
System Features
46Strata DK Feature Description 5/99
DTMF and Dial Pulse CO Line Compatible
Signals generated by pressing the dial pad buttons of a digital telephone are neither DTMF nor 
rotary dial signals. The system can be programmed to translate these station signals to either 
DTMF or rotary dial signals as required by the serving CO.
Each line is programmed individually for DTMF or rotary dial signaling. If a CO line is rotary, a 
telephone or Attendant Console user can send DTMF tones as required, by pressing the Tone Dial 
Select button (flexible program option).
The system can be programmed to enable or prevent DTMF tones from being returned to digital 
telephones when a user dials on outside lines or sends DTMF digits to a voice mail device.
Benefits
Provides easy accommodation of both older, rotary CO and the newer touch-tone COs. In both 
cases, the station user can still have the convenience and aesthetic appeal of a push-button phone.
System Availability
Standard on Strata DK14/DK40i/DK424