Deleting old meeting Locations

Hi:

I'm trying to find a way to delete old meeting locations
from the Schedule Meeting Dialog box.

When I'm inviting others to a meeting, the "Location:"
drop down box has too many phone numbers or meeting rooms
that I no longer use. I'd like to find a way to delete
all or most of them.

Does anyone know a way to delete them?

Best regards, Mike G
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