ITU Modem T-288 Series
 
How do I setup modems for a leased line connection under Windows NT 4.0?

It could be that the modem is set to Leased Line mode. When this happens, it will be DUMB mode and will not accept any AT commands. Users can go through the following steps to change it back:
1. Pull the modem card away from the shelf connector.
2. Press the VO/DA button on this modem card and then push the card back to the shelf connector until the LED TST is lit.
3. Release the VO/DA button

 

 


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