Unfortunately, I was unable to find a phone with the model number of DKT3023C-SD through Toshiba, so I am unable to provide specifics regarding the compatibility with your particular phone. This headset is intended for use with VoIP softphones, and would connect to your PC via USB connection. If you are using softphone technology, this product should be compatible with your software. To place an order for this item, please contact us by dialing 1-800-333-3330. An order for this item could also be placed online at Staples.com.
Answered on 2/7/2013 by Liz C from Staples