This message from Apple Discussions pretty well sums up the
predicament for ISDN users who have (like me) or might upgrade to
MacOS 10.4.2.
Happy days,
Vlad James
----------------------------------------------------
Telstra ISDN NT1 Plus II Modem (Australia) and OS 10.4.2
This is a warning for all people (in Australia) who use the Telstra
ISDN service and use an Open Networks NT1 Plus II Modem (USB
connection).
The drivers that enable this modem are supplied by Telstra using an
installation disc which utilises an installation wizard.
If you upgrade from 10.4.1 to 10.4.2 (using the combined update
downloaded from the Apple Website):
1. The Install Wizard will no longer function.
2. Even if you install the modem scripts correctly (by dragging them
from the Modem Scripts folder on the installation disc to the Modem
Scripts folder in Systm/Library) an inability to connect due to a
modem error will occur because 10.4.2 does not support the modem
scripts supplied by Telstra.
I contacted Telstra about this, and they acknowledged that this
problem was associated with the 10.4.2 update. They said that their
level 3 technicians were working with Open Networks to provide a
solution. No timeline on this as yet.
Telstra then instructed me to contact Apple Support to register this
issue and to talk with a level 2 technician. I was subsequently
informed that, because these are third party modem drivers, Apple
doesn't, and never has, offered support for this ISDN system.
I have notified Teltra of Apple's response to this and put in an
official complaint (against Telstra). Telstra has indicated that they
will attempt to engineer a solution.
In the meantime, using "Archive and Install", I have downgraded my OS
to 10.4, then updated it to 10.4.1 (and subsequently regained full
functionality of this connection).
Bottom line: The present Telstra ISDN service in Australia is not
presently supported by OS 10.4.2, do not upgrade to this operating
system if you wish retain connectivity. If you have already upgraded
to 10.4.2, you will have to downgrade to 10.4.1. to regain connectivity.
Once I have resolved this issue for myself, I will submit a posting
to that effect.
Cheers!
Karl
