Palm Treo 650 (CDMA)

ok got my 650... when a call is in progress and another call comes in you may answer it and it then puts the original call on hold thus call waiting. However when you finish the second call to return to the original call it doesnt end it it continues to keep it on hold. is there anyway to end that call? according to the manual it tells you when the call waiting incoming call is done to hit the hang up all button and then the sprint network will auto dial back both parties to continue original conversation. Is that the only way to do it??

thanks all...