Why, yes it does!
The new over-ear headset Leitner Wireless is 100% compatible with Shoretel. We tested it on the ShoreTel 560 phone and it worked great!
Compat should be on 1 and the switch on the left should be set to "RHL".
If you are looking to be able to get the alerts in your ears when the phone rings, check out the Leitner EHS for Avaya and Shoretel phones.