I would appreciate some pointers on how to do the following:
We monitor a number of Avaya IP Office PBXs. You can get a table of connected extensions, including info about the extensions, using some specific OIDs.
This information is designed to be presented in a table.
How would I go about adding this information to the Inventory tab?
Are the best places to start. But before you do delve into that, make sure the entPhysical is the best place for this - check the table structure to see if it will do what you want, don’t try and fudge it in.