Section 4, User Interface Guide ATLAS 550 System Manual
294 © 2002 ADTRAN, Inc. 61200305L1-1F
DIAL PLAN (FXO) > NETWORK TERM > IFCE CONFIG > STRIP MSD
Write security: 3; Read security: 5
Strips a selected quantity (choose from NONE, 1, 2, and 3) of the Most Significant 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 STRIP MSD
set to 1, all digits would be sent toward the network except the leading 9.
DIAL PLAN (FXO) > NETWORK TERM > IFCE CONFIG > SOURCE ID
Write security: 3; Read security: 5
Simplifies the creation of a DIAL PLAN in applications where the criterion for switching calls to a certain
endpoint is a function of which endpoint originated the call.
DEFAULT VALUE = 0. The default ID for all endpoints is 0 and all accept numbers is 0. With default
values, all calls are routed based only on the dialed number.
Multiple endpoints can have the same SOURCE ID.
When creating the CALL ACCEPT list, specify a SOURCE ID(s) as well as a dialed number or range of
dialed numbers to accept.
Example: An application requires that all calls that originate from Port 1 of the ATLAS 550 in Slot 1 be
switched to Port 2 of that same module. Assign a unique SOURCE ID (e.g., 7) to Port 1 of the module, and
then configure Port 2 to only accept calls from that unique SOURCE ID (7).
DIAL PLAN (FXO) > NETWORK TERM > IFCE CONFIG > PORT SELECTION
Write security: 3; Read security: 5
Determines how the ATLAS 550 switchboard uses FXO ports for call routing. The CIRCULAR method can
be used for call load balancing among the available ports on the module.
Example: The unit receives an incoming call on Port 3. The switchboard looks for an interface who has
matching accept criteria to the number it received. A match is found on interface “Z” that has PORT
SELECTION set to ALIGNED. This causes interface “Z” to only process the call if it has Port 3 available. If all
matching interfaces have PORT SELECTION set to ALIGNED and none of those interfaces have Port 3
available, then a busy or fast busy will be returned to the calling party.
STRIP MSD does not affect CALL ACCEPT criteria. All of the digits (including the MSDs that
are subsequently stripped) are used as accept criterion.
NORMAL Always start with the lowest numbered available port (i.e., for a Quad FXO
Module with four configured interfaces, Port 1 would always be used first if
available).
CIRCULAR Contiguous ports from last to first.
ALIGNED Provides the ability to maintain alignment between ports as if they were in
dedicated map mode. This scenario requires PORT SELECTION set to
ALIGNED on both interfaces (usually on User Term and on Net Term). An
interface that has PORT SELECTION set to ALIGNED will only process a call
from the switchboard on the same port that the incoming call was received.