Breaking up is hard to do. Apparently, it's easier if you use Slydial; a system that let's you skip directly to voicemail when you call.
It's as easy as calling 267-SLY-DIAL. The person you call will immediately receive a "missed call" and a new voicemail. Magic!
No sense actually having the balls to break up with someone directly; let technology do it for you.
Slydial is just one step above a text-message break up. Barely.