ADTRAN Atlas 550 - Manual (Page 166)

Chapter 11. Dial Plan
11-24 ATLAS 550 User Manual 61200305L1-1
QUAD BRI/U MODULE: NETWORK TERMINATION
The Quad BRI/U Module can interface directly with the network (PSTN).
When you are working in the
N ETWORK T ERM section of the D IAL P LAN menu,
and S LT is defined as U-BRI-4 , the following interface configuration options
are available:
S WITCH T YPE Write security: 3; Read security: 5
Defines the type of ISDN switch to which the port is connected. If con-
nected to another ATLAS, both need to be set to the same switch type.
Choices include
L UCENT 5E , N ORTHERN DMS 100 , and N ATIONAL -ISDN .
SPID L IST Write security: 3; Read security: 5
To properly operate with a network (PSTN) ISDN switch, the BRI interface
must have Service Profile Identifiers (SPIDs) and phone number(s) that
match the SPID(s) and phone number(s) programmed into the ISDN switch
for this line. Each BRI may have one or more phone numbers and SPIDs.
The
SPID L IST submenu defines these parameters to ATLAS.
P HONE N UMBER The phone number(s) assigned to this BRI phone line.
SPID N UMBER This entry must match the SPID number(s) which has been set in the net-
work’s ISDN switch (or in the PBX) for this BRI line. A SPID must be entered
for each phone number.
C ALLS The number of calls (1 or 2) which can be received or sent on this number/
SPID.
D64, D56,
A
UDIO , S PEECH
These options reflect the network provisions for this SPID. If the BRI was
purchased with different services provisioned for the SPIDs, then the call
must match the services supported.
S TRIP MSD Write security: 3; Read security: 5
Strips a selected quantity (choose from
N ONE , 1 , 2 , and 3 ) of the Most Signif-
icant Digits (MSD) of a dialed number prior to being forwarded out of the
port.
Example:
A network port could be set to accept all calls beginning with 9 (9$), and
then with
S TRIP MSD set to 1 , all digits would be sent toward the network
except the leading 9.
S TRIP MSD does not affect C ALL A CCEPT criteria. All of the digits
(including the MSDs that are subsequently stripped) are used as
accept criterion.