Serving All of Your Phone, Internet, Cable, and Security Needs.Glenwood, formally KeyArt Comm Inc and Keystone-Arthur Telephone Company proudly serve Keystone, Lemoyne and the surrounding area. Established in 1918, we provide superior customer service for telephone, Internet and computer solutions . KeyArt Comm Inc offers the following services• Commercial and residential• On-site and In-house• Affordable options and expert technicians• Dependable Internet access• Telephone equipment and lines• Security services• Networking and cabling• 24- hour servicePlease contact us today for all your computer, telephone and Internet solutions.