Telephone Call Waiting No Overall Depth 10 in Speakerphone No Overall Height 3 1/4 in Voicemail No Overall Width 5 1/2 in Volume Control Yes Indoor/Outdoor Usage Indoor Standards CSA Certified FCC FCC CRF 47 Part 15 UL Listed Number of Handsets 1 Number of Lines 1 Cord Length 12 in Mounting Location Surface Caller ID No Enclosure Material Stainless Steel Includes Enclosure Yes Facility Type Correctional Facility Healthcare Includes Mounting Hardware Yes