HOW TO BUILD AND STORE ISDN MESSAGES

The following steps explain how to create ISDN Messages and store them in
the Message Pool. These messages can then be sent manually or used in a
test script. For detailed information on the various menu items shown in
this application note, please refer to the ISDN User Manual.

1.  Go to the Application Processor (AP#1, AP#2 etc.) running the ISDN
monitor or emulation application.

2.  Go to the "MessageSet" topic, press F1 (Menu). Select a message set. It
will be displayed at the top beside "Current Message Set:" after it is
loaded. Exit the "Message Set Selection" menu.

3.  Go to the "MsgBuilder" topic, press F1 (Msg Menu). This menu shows all
of the available messages for the Message Set (ISDN Variant) that is
selected.
- specify the "Build Mode" (Manual or Automatic)
- specify the "Direction" of the message
- specify the "Call Reference" fields. NOTE: when sending messages from the
message pool within a test script, the test script has the ability to modify
the call reference fields.

4.  Move the cursor to a message that you would like to build
(example SETUP), press F2 (IE Menu). This menu will display all IEs. You
can choose submenus (F3, F4 and F5) to display Mandatory, Optional and
Other IEs applicable to this message (and direction). 
- select or de-select an IE by pressing F1.
- the content of an IE can be specified by pressing F6 (Octet Menu). 

The Octet Menu allows the user to select and de-select octets and to modify
the parameters for each octet.

5.  Once the IEs have been selected and built, exit back to the
"Message Selection Menu" and press F1 (Generate Message). The message that
you have built is now stored in a temporary buffer called the "Mbuf". Exit
the "Message Selection Menu".

6.  You can view your message by pressing F4 (Disp Mbuf). Exit back to the 
topic bar.

7.  Press F3 (Pool Menu). The first time we enter the Pool Menu, we want to
create a Message Pool file on the hard drive. This will allow us to save the
messages that we build. Move the cursor to "Pool Name", press F1
(Modify File Name), enter the Pool File Name (example NI2MSG.POOL),
press <ENTER>. Move the cursor to "Drive", press F1 (Hard Drive Menu), move
the cursor to the drive you wish to store the Message Pool and press F3
(Select Hard Drive), exit the "Hard Drive Menu".

8.  In the "Message Pool Menu", move the cursor to "Entry Number", select a
new Entry Number (example 1). Move the Cursor to "Entry Name", press F1
"Modify Entry Name", type in a name (example SETUP) and press <ENTER>.

9.  In the "Message Pool Menu", move the cursor to "Entry Number" and press
F4 (Copy Mbuf). Specify the entry number to copy the Mbuf into (example 1).
Press <ENTER>.

10. In the "Message Pool Menu", move the cursor to "Pool Name" and press F3
(Save).

11. Repeat steps 3, 4, 5, 8, 9 and 10 for each new message that you want to
build and store (example SETUP, SETUP2, SETUP3, CONN, DISC, REL, RELCOM,
from user side, from network side etc.).

Once the Message Pool is created and saved to the hard drive, you can load
it into the Pool Menu by entering the "Message Pool Menu", move the cursor
to "Drive", enter the drive number, move the cursor to "Pool Name", enter
the file name, and press F2 (Load).
 

Additional PT Series test scripts and application notes can be found at:
www.dencom-inc.com