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Only Extensions with 3's and some 4's can be direct dialed with (615) 230-3XXX all others must be dialed via the Gallatin Campus number (615) 452- 8600 and the Extension.
The Livingston campus, while we can transfer calls using just the extension 51XX, for someone to dial the number themselves they will need to dial (931) 823-7065 (Local) or 1-800-563-8220 (Toll Free) and enter the desired extension.