Allied Telesis AR400 SERIES Software Release 2.7.1 - Manual (Page 89)

Physical and Layer 2 Interfaces 89
Software Release 2.7.1
C613-02021-00 REV F
Enter directory numbers and subaddresses with the command:
SET Q931=0 NUM1=number NUM2=number SUB1=subaddress
SUB2=subaddress
The ISDN service provider must supply the directory numbers and
subaddresses. If the directory number is a full 10 digit number (3 digit area
code plus 7 digit number), the router will append the digits “0101” to the
number and attempt SPID initialisation with the result. This is known as
the Generic SPID procedure. If SPID initialisation has already taken place
and SPIDs obtained through the Auto SPID procedure, then either these
SPIDs are the same as the Generic SPID and the router will successfully
reinitialise, or the SPIDs are not the same as the Generic SPID and the
router will not initialise. In this case, the router will revert to using the
Auto SPID values.
5. Create call definitions.
Create ISDN call definitions to enable the router to make ISDN calls to
other devices on the ISDN network. This is the only step you must
complete to configure ISDN on the router. Before a call can be made from
one router to another, create call definitions on both routers, by entering
the command:
ADD ISDN CALL=name NUMBER=number PRECEDENCE={IN|OUT}
options...
For example, a Remote Office router is to be connected to the Head Office
router via ISDN. The ISDN number of the Remote Office router is 1234567.
The ISDN number of the Head Office router is 9876543. The called party
subaddress information element (IE) is used to carry connection
information, and PPP interfaces are created explicitly to use the ISDN calls.
Either router can initiate the call, but calls from the Remote Office have
precedence. On the Head Office router, to create a call to the Remote Office
router, enter the command:
ADD ISDN CALL=ROHO OUTSUB=LOCAL SEARCHSUB=LOCAL
NUMBER=1234567 PREC=IN
On the Remote Office router, to create a call to the Head Office router, enter
the command:
ADD ISDN CALL=ROHO OUTSUB=LOCAL SEARCHSUB=LOCAL
NUMBER=9876543 PREC=OUT
Each call has the same name (ROHO), and this name is passed via the
called subaddress IE to provide identification to the remote end of the link.
Each router will search for this call using the called subaddress IE.
You must set the precedence to ensure that in the event of a call collision
(the same call made and answered at the same time), one call is completed
and other call is cleared. The direction of precedence is not important, but
set precedence to IN at one end of the call and OUT at the other end of the
call.
The ISDN number is the exact sequence required to reach the remote router
from the local router, including STD access codes and area codes. The
number may contain only decimal digits. Hyphens and other characters
will result in an error.
Check that the ISDN calls are successfully added with the command:
SHOW ISDN CALL