Least Cost Routing - Toshiba Strata DK 280 Installation Manual

release time of the RRCS channel can be
programmed for a time between one and nine
seconds (initialized timing is four seconds)-this is
the time it takes to release the RRCS circuit after
the last digit is dialed.
The choice of timing is a trade-off between CO
line time to connect and user speed. If the time is
too long, the outside called party may answer
before the voice path is "cut-through," and the
caller will not be heard. If the time is too short, a
standard telephone user inputting DTMF tones
could be cut off prematurely from using other
features, such as Speed Dial or Toll Restriction.
Standard telephones will also be able to defeat
Toil Restriction if the seize time is too short and
they are not required to dial outgoing calls via
Least Cost Routing (LCR). It is recommended that
standard telephones always be required to dial
outgoing calls via LCR to prevent them from
defeating Toll Restriction.
Note:
If no digits are dialed after accessing an
outgoing CO line, the RRCS remains seized
for 15 seconds and then drops; however, the
line remains connected.
Program 13-Defining the Message Center
Each digital, electronic and standard telephone can
receive a maximum of four message waiting
indications per [PDN] and each [PhDN] owned by the
station. One of these four is reserved for the
designated Message Center. Typically, a voice mail
device, attendant console or a telephone (digital or
electronic) accompanying a DSS console (DDSS or
HDSS) will be the Message Center. However, if
incoming traffic to a DDSS or HDSS console attendant
is heavy, another station may be assigned to be the
Message Center.
If the assigned Message Center is a voice mail device,
the lowest port of the customer's voice mail device
should be the Message Center. (See Program 31 for
voice mail group port assignments.) Initialized data
assigns no port as the Message Center.
Program 1 S--Ground/Loop/Tie/DID Line Options
All LEDs are initialized as OFF.
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Automatic Release (AR) on Voice Mail or Voice
Calls, Code O-On loop start CO lines, some COs
send the AR signal-a 95 or 450-millisecond open
of the CO line loop-after an external party hangs
up (typically 1 - 15 seconds) to disconnect a loop
start line. If the CO sends this signal after an
external party hangs up and before the VM/auto
attendant transfers a call, D tone will be sent to
the voice mail port (Program 30, LED 15),
releasing and clearing that port for another call.
This feature is active on all voice calls.
When a station is disconnected from a CO line call
by the AR signal, its LCD will display "CO LINE
HANG UP". The line can be disconnected anytime
by the AR signal during the "talk state" of a call.
CO line calls disconnected by the AR signal will be
represented on the SMDR report by a "*" next to
s
the CO line number. Code 0 does not apply to
ground start lines, which automatically disconnect
when the external party hangs up.
IMPORTANT!
This option cannot always be used because
some COs may send unreliable AR signaling
or no AR signaling for loop start lines. AR
signaling is sometimes referred to as Calling
Party Control or Loop Supervision.
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CO Outgoing Signal, Code I-Each line can be
independently assigned to have either Dial Pulse
(DP) or Dual-tone Multi-frequency (DTMF)
signaling.
Notes:
1. If a line is set for DP operation, the Tone (
Dial Select (TONE) button must be
programmed on stations that must send
DTMF tones over the lines.
2. If tie or DID lines are programmed for dial
pulse, turn LED 11 ON in Program 30 for
each station port assigned to the DID or
tie line.
Line Pulse (DP) Rate, Code 2-If a line is
assigned DP signaling, the rate can be either 20
or 10 pulses per second. Some Central Offices do
not reliably accept 20 pulses per second.
Automatic Release (AR) From Hold/Transfer,
Code 3-On loop start CO lines, some Central
Offices will send the AR signal-a 95 or 450-
millisecond open of the CO line loop-after
(typically 1 - 15 seconds) an external party hangs
up. If the system CO line is on hold (or being
transferred to another station or Auto Attendant
fanuary
1996
9-l 1