http://redsteel.varitalk.com/
Have the sensei from Red Steel call you haha it's so funny.
aww I thought You got to type in a message and enter a cell phone # and "THE SENSEI" would call your friend and make fun of them! =/
EDIT You do enter the #, I just didn't go far enough into it for the option! loves it! BTW, you can only send the message once to a specified #. So make sure the message is right as you only get 1 chance.
What a good way to start a drama war with your friends, put your friends number on there and put the person s/he hates as their "pimp" and their number. The friend will think his/her mortal enemy called hehe