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Assigning or
removing a loop
extension
number
Page 3 Modular Plus Programming and Feature Card for ISDN Terminals
extension of another loop), or Lpnnn (assigned to another loop).
15. Press CHANGE to assign the extension to the loop or to remove it.
®
16. Press
to exit or ' to continue in programming.
Note: Before changing an S-loop to a T-loop, use the above procedure to remove any
extension numbers that have been assigned to the S-loop.
To reassign an extension number registered to a cordless handset, the number
must first be de-registered in System prgrming/Remote access/
Companion/Registration. The extension number type of a Portable
extension number (477-508) must be changed from Portable to ISDN, under
System prgrming/Remote access/Change extn type, before it can be
assigned to an S-loop. Although an ISDN S-loop can support up to 8 devices, the
loop has a limit of 2 B-channels. An ISDN data or voice terminal uses 1 B-channel
for an incoming or outgoing call. An ISDN video terminal uses 2 B-channels for an
incoming or outgoing call. If both B-channels are in use, other devices on that
loop will not be able to make or receive calls until a B-channel is available, or until
both B-channels are available in the case of a video terminal. Thus, the number
of terminals installed on an S-loop must take into account your need for dedicated
line access for the terminals on that loop.
After one or more ISDN extension numbers have been assigned to the S-loop, a Loop
extension number can be assigned so that calls can be made from terminals with no
terminal address on the loop.
Norstar uses the Loop extension number to distinguish the devices on that loop from
devices installed on other loops. The Loop extension number associated with the call is
also used by Norstar as the Outgoing ID. The Outgoing ID is the number that is displayed
on all called terminals.
Choose one extension number assigned to the S-loop to be the Loop extension number.
You can also set the Loop extension number to None, if all the ISDN devices on the loop
have terminal addresses and do not require a Loop extension number
1. Place the programming overlay over the appropriate keys on the telephone.
≤
2. Press
••¤flfl‹››
Password:.
3. Enter ¤flfl‹››
4. Press ' until the display shows Hardware.
5. Press ≠. The display shows Show module.
6. Press '. The display shows Cards on CCU.
7. Press ≠. The display shows Cd1-CCU:.
8. Press ≠. The display shows Card type:.
9. Press ' twice. The display shows Loop 201.
10. Press ≠. The display shows Type:.
11. Press ' twice. The display shows Extns on Lp.
12. Press ≠. The display shows Assign extns.
13. Press '. The display shows Loop extn#:.
14. Press CHANGE until the display shows the ISDN extension number you want to
assign, or until the display shows None if you do not want to assign a Loop extension
number.
®
15. Press
to exit or ' to continue in programming.
(
)
. The display shows
CONFIG
(
)
. The display shows Terminals&Extns ˆ
CONFIG
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