Telstra ISDN NT1 Plus II Modem (Australia) and OS 10.4.2

Hi All,

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

Posted on Jul 15, 2005 9:35 PM

Reply
24 replies

Nov 2, 2005 11:06 PM in response to Karl Texler

The NT1 Plus II works with 10.4.3!
My first attempt failed, these are the steps I took to get it to work, they may not all be necessary.
1. Disconnect the modem USB cable.
2. Delete the NT1 Network Port Configuration. This may take time as I assume the port is cached and takes some time to go down but you can delete when it goes gray.
3. Delete the NT1 drivers from Library/Modem Scripts
4. Repair permissions
5. Upgrade to 10.4.3 using the Combo Updater.
6. Repair permissions.
7. Drag modem scripts from CD to Modem Script folder.
8.Reconnect Modem's USB cable.
9. Open System Preferences>Network Pane. Configure NT1 Port which a dialog should say has just been connected.
10. Press connect - good luck

Martin

Nov 4, 2005 12:11 AM in response to Karl Texler

Hi,

I've connected satisfactorily using the NT1 Plus II on a G4/800 running MacOS 10.4.3. Triffic!

The only things I would add to Martin's procedures:
1. I upgraded from 10.4.1 to 10.4.2 to 10.4.3 (had to do this as I had regressed to 10.4.1 and MacOS 10.4.3 did not want to upgrade directly from 10.4.1).
2. Instead of reloading the modem scripts from the CD, I retrieved the previously removed scripts from Trash.

Thanks to Karl, Martin and Apple. No thanks to Telstra.

Cheers,

Vlad

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Telstra ISDN NT1 Plus II Modem (Australia) and OS 10.4.2

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