I never had an 8700 but I have an 8800 and I don't even use the loudest ring setting. I have it on medium and can hear the "CTU Ring" in the living room from the kitchen quite well....happened last night and the gf never ceases to make fun of my "Jack" ringtone.
Also one time I forgot that I had Dave Chappelle as my email notification and it went off in the parking garage elevator at work. One lady couldn't stop laughing and the other didn't hear it...luckily....I'M RICK JAMES...
Who's that peekin' in my window?...POW....nobody now.