Telephone Call Waiting No Overall Depth 2 1/2 in Speakerphone No Overall Height 12 in Voicemail No Overall Width 10 in Volume Control Yes 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 Wall Caller ID No Enclosure Material Stainless Steel Enclosure Rating NEMA 3R Includes Enclosure Yes Facility Type Correctional Facility Healthcare Maximum Operating Temperature 131 Degrees F