Toshiba Strata Dk14, Dk40i, Dk424 General Description Manual

Features
System Features
Strata DK Feature Description 5/9957
Hotline Service (Emergency Ringdown)
Analog single-line telephones can be programmed so that when the user goes off-hook, they 
automatically ring a designated extension without dialing. The receiving station or Attendant 
console displays the station name/number of the off-hook calling station.
This feature is very useful for hotel/motel applications, in which lobby or public area telephones 
either do not have dial access, or for...

Features
System Features
58Strata DK Feature Description 5/99
ISDN Basic Rate Interface (BRI)
BRI is the smaller capacity ISDN interface, providing two simultaneous voice or data connections. 
BRI uses the 2B+D transmission format which is defined as two 64 kbps bearer channels and one 
16 kpbs data (control) channel.
The two B-channels can also be combined for data transmission at speeds up to 128 kbps. The D-
channel carries call setup control data and can also be used as a third connection for packet...

Features
System Features
Strata DK Feature Description 5/9959
©Basic Rate S/T Interface Subassembly (RBSS) attaches to the RBSU to provide two additional 
BRI S/T interfaces that can be used for station-side connections only.
The combination of the RBSU and the RBSS subassembly can provide four BRI interfaces in one 
card slot.
NoteNetwork connections using BRI S/T interface require a customer-supplied external NT-1 
device.
The following BRI U Interface cards are supported by DK424 Release 4.2 and...

Features
System Features
60Strata DK Feature Description 5/99
©Multiple LAN Link: Linking multiple LANs together, using ISDN, is very efficient at the 64 
kbps high-speed rates, and data transmission over the digital network provides extremely high-
data accuracy. This would replace the typical LAN bridge and modems in use today, which are 
much slower and provide less data accuracy via the analog network. The DK40i and DK424 
support BR1 station-side connection of access router devices used in these...

Features
System Features
Strata DK Feature Description 5/9961
ISDN Primary Rate Interface (PRI)
PRI is the larger capacity ISDN interface, providing 23 simultaneous voice or data connections. 
PRI uses the 23B+D transmission format which is defined as 23 64 kbps bearer channels and one 
64 kbps data (control) channel, with total bandwidth of 1.536 Mbps.
ISDN PRI is designed as the bulk trunk interface to the ISDN network. PRI connects the DK424 
telephone system to an intra- or inter-LATA communication...

Features
System Features
62Strata DK Feature Description 5/99
This is very important when using the Call-by-call feature to enable trunk groups larger than 
the 23 B-channels available on one PRI line. This extends the number of call-by-call B-
channels to 47 (2 x 24 -1) and extends the number of B-channels on the second (non-signaling) 
PRI line from 23 to 24. This provides better performance and cost savings in high volume 
ISDN PRI applications.
©Calling Number Services are provided through the...

Features
System Features
Strata DK Feature Description 5/9963
©High Speed Data: Performance improvement (speed and accuracy) and connectivity is 
becoming a major factor in ISDN data related applications. For example, computer database 
interface works well on ISDN lines for large capacity file transfer, high resolution graphics 
transfer, online transaction processing, and information retrieval applications. ISDN provides 
better performance for these applications which require faster call setup and...

Features
System Features
64Strata DK Feature Description 5/99
Least Cost Routing (LCR)
LCR enables automatic routing of each outgoing call over the least costly trunk, CO line, or 
common carrier. A station user simply dials the access code (9) and the telephone number. The 
system can also choose a specific route for long distance or local calls when enabled. Up to three 
schedules can be set up, enabling different routes selected at different times of the day. Up to five 
special codes (ones that...

Features
System Features
Strata DK Feature Description 5/9965
Line Call Pickup Groups
With the CO Line Call Pickup Group feature, up to two CO Line Call Pickup Groups can be 
programmed on DK14 and DK40i systems and up to four groups on DK424. Ringing CO lines in 
the first CO line group can be picked up with an access code or with the Directed Pickup1 button, 
if it appears on the telephone. Ringing CO lines in the second CO line group can be picked up with 
an access code or with the Directed Pickup2...

Features
System Features
66Strata DK Feature Description 5/99
Line Groups
Also known as Trunk Groups, this feature enables the CO lines on any Strata system to be assigned 
to CO line groups. Station users can access the CO line groups by dialing a specific CO line group 
access code. This enables a customer to group various types of CO lines together for convenient 
access.
For example, a customer might want to put Tie lines in one CO line group and WATS lines in 
another. Users would then access the CO...