The number is a hotline that makes you feel better about your day then afterwards says, "Also buy our ringtones" don't worry, it's nothing illegal for bad...just fun.
Hmm...just got a text from one of my contacts on my cell phone saying "Fwd: My phone is about to die and I really need to talk to you call me at '312-588-3107'"
Seeing something's up with this number I'm not calling it hah.