Oh, sorry. Those are call codes used for call handling in the "Mode Block".
The descriptions are on page 617 of the US version of the OS7100 programing manual. Depending on what mode the system is in (Example- Mode Block(day))it looks at these call codes to see where to start.
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for instance the manual says:
NT is No Answer Trunk. This is a trunk caller who was forwarded on a no answer
AT is Anything Trunk. This is a trunk caller who was sent by other means.
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It lists 11 different call codes to handle extension and trunk calls based on how the calls hit the vms.
I hope that makes sence, and I hope the description is right. It is the way I understood it worked, but I may be wrong and that is why it is not working the way I thought it should
So to get the no answer trunk call to go to the day main menu I had to set AT to "goto" "mnu" "day main"
I thought I should have to set "NT" to "goto" "mnu" "day main" but no. It only works when I have "AT" pointing at "day main" menu.