All my sites mith IDF to MDF's have cat5 or 6 tied to patch panels. All jacks are labeled, and patch panel has label as well identifying it as IDF # x - location
(IDF 2 - 2nd floor)
But if you are specifically slating this cable for telephone vs data, a few 25 or 50 pr. Cat 3 feeder cables tied to patch panels at either end would work.