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Strata DK Programming 5/99 8-1
E911
E911 8
This chapter contains programming record sheets, along with specific instructions for
programming E911 CAMA trunks.
Enhanced 911 CAMA trunks apply only to the DK424, Release 4.0. The RMCU/RCMS PCBs
provide up to four CAMA trunk circuits. The RMCU/RCMS eliminates the need for adjunct
terminal adapter equipment for connecting to E911 CAMA trunks. For more information on
hardware, refer to the Strata DK Installation and Maintenance Manual.
Operation Overview
The DK424 E911 feature provides flexible dialing of 911 emergency calls. This allows users who
are not familiar with DK424 dialing sequences to make an emergency call regardless of how they
dial 911 from Toshiba telephones. In all of the sequences below, the DK will seize an idle CAMA
trunk and send 911 plus the dialing station’s Caller Emergency Service Identification (CESID)
over the CAMA trunk via MF tones.
Note Once a 911 call is started, most other buttons/keys on a telephone are disabled to prevent
accidentally dropping the 911 call attempt. This includes the
+ROG button, so that the 911
call cannot be put on hold.
♦ Press DN button and dial 911. When the user dials 911, the PDN releases from the internal
connection and seizes the CAMA trunk.
♦ Off Hook and dial 911 (station has off hook selection of PDN in Program 32). When the user
dials 911, the PDN releases from the internal connection and seizes the CAMA trunk.
♦ Off Hook and dial 911 (station has off hook selection of a CO line or line group in Program 32
and has a CO
/LQH or 3RROHG/LQH buttons). When the user goes off-hook, the station will
seize the normal CO line on the appropriate CO
/LQH/3RROHG/LQH button. When the user
dials 911, the normal CO line is dropped and an idle PDN or CAMA CO button connects to
the CAMA trunk. If an idle PDN or CAMA CO button is not available, the 911 call will be
sent out the originally selected line without the station’s CESID information.
♦ Press DN button and dial 9+911 (no LCR, 9 is line group access code, station does not have
CO
/LQH, 3RROHG/LQH or &$0$ CO buttons). When the user dials 9, the station will seize
a “dial 9” CO line on its PDN button. When the user dials 911, the 911 call will be sent one of
two ways:
♦ If the station does not have another idle PDN or &$0$ CO button, the 911 call will be
sent out the normal CO line in the dial 9 line group without the station’s CESID.
♦ If the telephone has another PDN or &$0$ CO button, and it is idle, the first PDN will
drop and the second PDN or CAMA CO button will be connected to the CAMA trunk.
911 plus the station’s CESID will be sent out the CAMA trunk.