There are two aspects of creating a ShoreTel ECC Dial List. The first part is creating and connecting to the database that holds these lists.
This video shows how to use User Groups and Class of Service (COS) to turn off these features.
How to quickly add users in Shoreware Director.
Adding agents in ECC 7/8
How to test SMTP traffic between ShoreTel servers and V switches
How to add a re-occurring conference in ShoreTel Conferencing
As of release 13.x on ShoreTel you can setup File Based Music on Hold. Check out the video
Ever locked yourself out of Director?
You connect a serial cable to your computer and start a terminal emulation program like Putty. The serial connection should be at 19200 and the rest of the settings you can leave at default.