Scitec Aegis-PS-08 Single-Line Corded Speakerphone. Aegis-08 telephones the standard for economy branded hotels now offer improved styling and more features at the same low price! These rugged trouble-free products with added features like SciTouch One-Touch message retrieval are all line-powered no need for an external power plug. Includes features such as a single line no keys no dialing volume control operates with a PBX or in ring-down mode through service provided by a local telephone company.