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PREFIXwDIGiTS
Table
18-l
18.1
PREFIX DIGITS TABLE
The PREFIX DIGITS Table is used
only
with Adaptive Integration. If the Tbshiba VP System is
not equipped with this option, the configuration does not contain this table.
,
For Centrex installations that have SMDYSMSI and the optional Adaptive Integration feature,
the PREFIX DIGITS Table should only be
umfiied
if mailbox numbers are
less&an
seven digits
long.
In a Centrex instahation, the station numbers are typically three to four digits in length. However,
the number
dialed
by outside calIers is seven digits The calI records sent over the SMDYSMSI
link to the
lbshiba
VP System also contain this seven digit
Centrex
number. The Toshiba
VP
System uses the PREFIX DIGITS Table to remove the leading prefm digits from the Centrex
number. The remaining digits are the same as the ma&ox number of the call. (Station and
mailbox number must match.)
When the
Toshiba VP System sends a Message Waiting Indication command over the
SMDVSMSI link to turn ON or OFF the MWI for a ma&ox, the Central Office (CO) expects
the seven digit Centrex number corresponding to that station. In this case, the Toshiba VP System
looks in the PREFIX DIGITS Table to get the leading prefix digits to add
to the extension number
before
sending the Message Waiting Indication command.
For example, a
Centrex
installation may have stations
4XXX,
!IXXX,
and
SXXX,
with the
corresponding seven digit
Centrex
numbers being 34%XXX., 345-5XxX, and
323-8xXx.
The
PREFIX DIGITS Table removes the leading
prefa
digits; the remaining digits are the
station/mailbox number.
Some installations may have station numbers beginning with zero. The PTRSTDIGIT Table
supports only 1 through 9 as valid
frost
digits. Therefore, the TRANSLATION Table must be used
to convert OXXX to a valid first digit. For example, if Centrex sends 356-0123 to the Toshiba
VP System, the PREFIX DIGITS Table strips off the 356, leaving 0123 as the station number. The
TRANSLATION Table must be used to convert 0123 to 1123 or some other legal number.
Intecom PBXs send SMDI records with ASCII periods preceding the station number instead of
office code digits or other numbers The PREFIX DIGlTS Table may contain one or more ASCII
periods to be removed.
The following
is an
example
of a PREFIX DIGITS Table:
All mailbox first digits must be entered in the table. List the
FIRSTDIGIT
Table to get a list of
currently used mailbox
first
digits.
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