Dtmf Back Tone; Dtmf And Dial Pulse Co Line Compatible; Dtmf Signal Time (80/160 Milliseconds); Emergency Ringdown - Toshiba Strata DK14 General Description Manual

Features
System Features

DTMF Back Tone

The system can be programmed to allow 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.

DTMF and Dial Pulse CO Line Compatible

The Strata DK System works with either DTMF or rotary dial pulse CO lines on a line-by-line
basis.

DTMF Signal Time (80/160 milliseconds)

DTMF tones that are sent via Speed Dial to lines and via automatic dialing to voice mail devices
can be set to 80 or 160 milliseconds. The time can be set independently for line out-dialing and for
voice mail automatic dialing. See
94.

Emergency Ringdown

Standard telephones can be programmed to automatically ring a designated extension when they
are taken off hook, after a predetermined time without dialing. The receiving digital or electronic
LCD station or attendant console displays the station name/number of the off-hook calling station.
This feature does not work with digital and electronic telephones.
In healthcare applications, this feature is known as Emergency Ringdown operation. It is used to
assist callers who may not be able to complete a call by dialing. If a station is left off-hook,
continuous ringing will occur at a designated extension. This feature is also known as "Hotline
Service" for hotel/motel applications. See

Enhanced 911 (E911) Service

In the public safety arena, Enhanced 911 (E911) is distinguished from Regular 911 by the delivery
of specific location information to the console of the dispatcher handling the emergency call. The
public switched telephone network (PSTN) delivers a Caller Emergency Service Identifier
(CESID) to the Public Safety Answering Position (PSAP) as part of the telephone call set up.
PSAP procedures outside the telephone connection translate the CESID into a specific location to
which emergency services can be dispatched. The Strata DK is not involved in the translation of
CESID into Automatic Location Information (ALI).
The Strata DK40, DK40i and DK424 can accept a call dialed as "911" or "9" + "911" from any
extension and deliver it to a specially programmed, single-line telephone port that connects to
customer-provided, emergency call adjunct equipment. As part of the call, the DK communicates
the originating directory number (DN) to the external equipment using DTMF signaling. The
external equipment translates the received DN to a valid CESID, connects the call to the PSTN and
delivers the CESID information when the call is answered.
Centralized Automatic Message Accounting (CAMA) trunks connect the customer-provided
equipment to the PSTN. When its CAMA trunk interfaces become available, the Strata DK424
will be able to connect directly to CAMA trunks, eliminating the need for external equipment.
The RMCU PCB with one RCMS subassembly provides two CAMA trunk interfaces in one
cabinet slot. One more RMCS may be added to the RMCU for a system total of 4 CAMA trunks.
An extension dialing "911" or "9" + "911" will be routed to its appropriate CAMA trunk. The
DK424 will seize the CAMA trunk, dial "911," and deliver that stations CESID once the trunk is
answered. The DK424 stores a unique, programmable CESID for each Primary Directory Number.
The DK424 has several internal notification features. It will notify all consoles and designated
stations of an E911 call. It may be programmed to initiate a conference call including the
70
"Continuous Dual-tone Multi-frequency (DTMF) Tone"
"Hotline Service" on Page 72 for more information.
Strata DK General Description
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