Toshiba Strata Dk Digital Telephone User Guide

							Full-duplex Speakerphone
Dip Switches
Strata DK Digital Telephone   6/00119
Figure 4 Location of DIP Switches
Table 12 shows the switch positions for the three different settings.
Table 12 DKT2020-FDSP DIP Switch Settings
L
in
e
 9Line 8Line 7
Line 6
Line 5
Line 4
Line 3
Line 2
Line 1
Intercom
Speed
DialD
o
 N
o
t
D
istu
rb
Line 17
Line 16
Line 15
Line 14
Line 13
Line 12
Line 11
Line 10
ON
1234
Fixed Buttons Microphone Location
Dial Pad Handset
Red/Green
LED IndicatorsDIP Switches
(some models)
3926
LCD Display
Flexible Buttons
BestON ON ON ON
Good ON ON ON ON
Normal
(Default)ON ON ON ONON OFF ON
ON ON OFF
ON ON ON
ON
1
234
ON
1
234
5206
ON
1
234
567
567
567
ON
1
234567
Dip Switch 5 ON for Internal Microphone; OFF for External.
DIP Switch Position Full Duplex Setting
1 234Dip Switch
567 
						

							Full-duplex Speakerphone
Dip Switches
120Strata DK Digital Telephone   6/00
NoteThe first four DIP switches are used to select the country, same as all other 
DK2000-series telephones. The default DIP switch settings (1~4) are preset to 
On for the USA and Canada. If you need to make adjustments for other 
countries, see Table 19 on Page 146. 
➤To use the External Microphone
1. Plug in the RFDM External Microphone into the bottom of the telephone (see Figures 
5 and 6).
2. Turn the microphone On by opening it (see Figure 7).
NoteThe High/Low switch works independently from the telephone’s 
speakerphone. This setting must be on High for proper operation. 
Important!
The microphone has a narrow voice pick-up range so the front of the microphone 
should always point toward the person speaking (see Figure 8).
Be sure to place the microphone at least one foot from the telephone speaker and 
do not point the microphone toward the telephone speaker grille.
To use the external microphone in a conference room setting, place the 
microphone away from all parties to eliminate some of the directionality effect. 
Parties may have to speak up to be heard.
CAUTION!Avoid pulling the microphone cord excessively. 
						

							Full-duplex Speakerphone
Dip Switches
Strata DK Digital Telephone   6/00121
Figure 7 External Microphone On/Off Figure 5 RFDM Plug on DKT2020-FDSP Figure 6 RFDM Unit
5218
EXT MIC
EXT MIC
LOW HIGH5217
5352RFDM Unit (OFF Position) RFDM Unit (ON Position) 
						

							Full-duplex Speakerphone
Dip Switches
122Strata DK Digital Telephone   6/00
Figure 8 External Microphone Voice Pick-up Path
Speech Training Mode
When the DKT2020-FDSP is used in speakerphone mode, it adjusts to both the 
telephone line’s and room’s acoustic properties. At the beginning of each 
speakerphone call, the echo canceller must perform Speech Training by evaluating 
both the FDSP user and the far-end user’s voice, background noise and line quality.
➤To train the speakerphone
➤
The parties at both the local telephone and on the far end should take turns 
speaking for approximately 10 seconds.
➤To improve speaker quality
➤
If the conversation becomes unstable during the call, or there is clipped speech, 
feedback or short silences, first try adjusting the volume. This forces the FDSP 
phone into speech training mode. The LED will go on.
➤If conversation is still unstable, press button 10 to activate half-duplex mode. You 
can turn off button 10 at any time to reactivate full-duplex mode.
5353RFDM Super Directional Microphone 
						

							Full-duplex Speakerphone
Dip Switches
Strata DK Digital Telephone   6/00123
➤To force the telephone into Speech Training mode
➤
During a call, momentarily press  ,  , 	 or 
*.
During Speech Training mode, the speakerphone operates in half-duplex mode. 
Tips for best results

Avoid blocking the microphone or shuffling paper near the microphone.

Avoid placing the speakerphone where it can detect excessive background noise, 
especially during Speech Training mode.

Avoid moving the telephone during a call—this changes the room’s acoustic 
properties. If the telephone or microphone is moved, you may have to force the 
Speech Training mode.
Special Button Operation (Button 10)
When using the external or Internal Microphone, button 10 works as a toggle from 
full- to half-duplex on the DKT2020-FDSP.
5241
Button 10
toggles 
between full-
and half-duplex.
Figure 9 Button 10 on the Full-duplex Speakerphone 
						

							Full-duplex Speakerphone
Dip Switches
124Strata DK Digital Telephone   6/00
➤To toggle full/half-duplex mode
Notes
Button 10 functions the same for Internal and/or External Microphone.
If DIP switch 6 and 7, in Figure 12, are turned Off, the Full/half-duplex function 
of Button 10 is disabled and Button 10 will function as programmed in Program 
39 of system/station Programming.
The DKT2020-FDSP’s full-duplex operation depends on the speaker volume 
setting. Raising or lowering the speaker volume directly affects the performance 
of the full-duplex operation.
Important!

If raising or lowering the volume does not improve performance, switch to half-
duplex mode by pressing Key 10.

If both you and the distant party are using full-duplex speakerphones, the 
sensitivity to both echo paths may cause a reduction or instability of volume. If 
this happens, it may be necessary to switch to half-duplex mode by pressing key 
10.
➤Press button 10 (see 
Figure 9) to turn full-
duplex mode On or 
Off.Full-duplex mode: Button 10 LED Off.
Half-duplex mode: Button 10 LED On. 
						

							Strata DK Digital Telephone   6/00125
Add-on Module/DSS Console5
This chapter provides an equipment overview of the following two optional units and 
describes the features buttons and their associated LEDs.

Digital Add-on Module (DADM) – add 20 feature buttons to 2000-series digital 
telephones. Up to two DADMs can be connected to a telephone.

Direct Station Selection (DSS) Consoles – available for system operators who do 
not have an attendant console. (See “DSS Console” on Page 127.)
DADM
The DADM, model DADM2020, is shown in Figure 10 on Page 126. The buttons can 
be programmed for [DSS], CO line access, and Station or System Speed Dial. 
Directory Numbers or other functions cannot be assigned to DADMs. 
Each [DSS] and 
 button has an LED that provides a status of the CO line or 
station assigned to it.

The [DSS] LED flashes green when the station equipped with an DADM is 
calling or transferring an outside call to a station. (If calling a station, the LED 
turns steady red when the called station answers; if transferring to a station, the 
LED turns steady red when you hang up to complete the transfer.) The DSS LED 
is steady red whenever the station associated with the DSS is ringing, busy, or in 
the DND mode. 
						

							Add-on Module/DSS Console
DADM
126Strata DK Digital Telephone   6/00

A Line (CO) LED is green when the CO line is in use by the DADM console user. 
It is red if it is in use by another telephone user.
209
208
207
206
205
204
203
202
201
200219
218
217
216
215
214
213
212
211
210229
228
227
226
225
224
223
222
221
220239
238
237
236
235
234
233
232
231
230
First DADM
Second DADM
2038
Figure 10 Example Button Assignments for the Strata DK DADMs
Notes
The button numbers shown in this figure 
are examples only and may not reflect the 
numbers on your particular station 
equipment.
Not available on DK14 systems. 
						

							Add-on Module/DSS Console
DSS Console
Strata DK Digital Telephone   6/00127
DSS Console
The DSS console operates alongside of a digital telephone to provide the telephone 
with 60 additional feature buttons. The buttons can be programmed for [DSS], CO 
line access, All Call Page, Night Transfer, and Station or System Speed Dial. This 
guide applies to the DSS Console models DDSS2060 (see Figure 11), DDSS1060, and 
HDSS6560.
LEDs on the DDSS2060 and DDSS1060 models light or flash red or green, and LEDs 
on the HDSS6560 model light or flash red. For the DDSS2060 and DDSS1060 
models, the Line (CO) and [DSS] LEDs act in the same manner as on the DADM; 
other feature button LEDs on both of these models will be red when activated. 
Figure 11 Example Button Assignments (DDSS2060 shown)
209
208
207
206
205
204
203
202
201
200219
218
217
216
215
214
213
212
211
210229
228
227
226
225
224
223
221
221
220239
238
237
236
235
234
233
232
231
230249
248
247
246
245
244
243
242
241
240NT
AC
257
256
255
254
253
252
251
250
2039
Notes
The button numbers shown in 
this figure are examples only 
and may not reflect the 
numbers on your particular 
station equipment.
Not available on DK14 
systems. 
						

							Add-on Module/DSS Console
[DSS] Button
128Strata DK Digital Telephone   6/00
[DSS] Button
The Direct Station Select [DSS] button can appear on both the DADM and DSS 
Console. Each DSS button is associated with a particular station in your telephone 
system. It can be used to transfer an outside call to the associated station or to make a 
direct call to the associated station. The [DSS] LED lights steady red when the station 
associated with the [DSS] is ringing, busy on a call, or in the DND mode; or when the 
associated station is idle, but all appearances of the station’s [PDN] are busy or in-use 
by other stations. [DSS] buttons cannot call station [PhDNs], Distributed Hunt Group 
[DNs], or ACD Groups.
Features
The LED color indications described in these feature descriptions apply specifically to 
the DADM and DSS Console models DDSS2060 and DDSS1060. Flash conditions 
described here apply to all DSS console models and the DADM.
Calling a Station
To call a station’s [PDN] from either a DSS console or a DADM, press the [DSS] 
associated with the station. A station call with a [DSS] can be made on-hook or off-
hook, and with Voice First or Tone signaling. After pressing the button, treat the call 
like any other station call made from a digital telephone. 
[DSS] LEDs indicate whether the associated station is idle or busy. The LED is steady 
red if the station is busy or ringing, and is not lit if idle. If all the station’s PDN buttons 
are being used by other stations, the DSS LED of the station is lit steady red, but the 
station may be idle. If the station is in the DND mode, its DSS LED lights steady red.
Transfer to an Idle Station
You can transfer internal or outside calls to an idle station from either a DSS console 
or a DADM.