Hello, Does anyone know off hand, how to set the number of rings for the Toshiba DKT3320, before it rolls over to voice mail?
This is driving me nuts trying to figure it out!

that is referenced in the user guide for your phone
under call forwarding .
What system do you have ,that phone model works on several versions of toshiba systems.

Or it could be the System Call Forward timer found under System Timers (default is 20 seconds)