Some Sort of Silence

[lehmancb]

Hey all I realize that I am new to this and I could just be retarded also but I not sure. I just got my phone a few weeks ago, and have noticed that there is no silence button, (or maybe I am just missing it) For instance if I am on a phone call and call waiting comes through or a text message my phone will just start playing my ringtone in the middle of my conversation and havent found a way to shut it off even after excepting the text message. Or just being at work not on the phone and it rings but all I want to do is shut off the ringtone and not answer well in the past on other phones you could just hit end or volume down to silence. Like I said I could be missing something abvious any help would be appreciated.

BTW I have the PPC-6700