On my 06 Prius there is a button on the MFD that allows you to transfer call back to the handset. My wife has an 05 and I cannot find a similar button. Am I missing something?
I don't think the 05 has a Transfer Call button. (The '05 phonebook doesn't have a proper keyboard, either.)
No button for the 05, it just goes back to the phone when you shut off the car. It takes about 10-15 seconds.