IntercomPlus is the Walgreen Company's proprietary pharmacy computer system. It was founded as Intercom in 1981, and was the first large scale retail pharmacy computer system It relies on VSAT satellite access and/or broadband connections to link the over 8,000 Walgreens retail, mail service, and specialty pharmacies. Through its usage, Intercom made Walgreens the largest private user of satellite transmission data in the world, second only to the U.S. Government [http://www.walgreens.com/about/careers/technology/advtech.jsp?cf=ln. The design of the system enables seamless store-to-store prescription filling, making filling a refill at a location other than where it was filled originally essentially no different from filling it again at the original location.