Nerd Vittles today provides a tutorial on linking a Sprint cell phone to Asterisk@Home to all but eliminate the cost of outbound cell calls nationwide. Last week Sprint announced the availability (beginning today!) of a new add-on for existing and new Sprint cellphone customers. For $5 more a month and a little Yankee ingenuity, you now can make unlimited FREE calls between your Sprint cellphone (or multiple PCS phones if you're on a shared plan) and your residential phone number regardless of the wireline carrier. In short, your home phone service need not be with Sprint. If you have Sprint home phone service, then the new PCS to Home service will be free. In either case, no cellphone minutes will be assessed for inbound or outbound calls between your Sprint cellphone and your home number … ever. In fact, they’ll show up on your statement as PCS-to-PCS calls which are also free.