Telephone Call Waiting No Overall Depth 7 3/8 in Speakerphone No Overall Height 13 1/4 in Voicemail No Overall Width 9 3/8 in Volume Control Yes Indoor/Outdoor Usage Indoor Outdoor Standards CSA Certified FCC FCC CRF 47 Part 15 UL Listed Number of Handsets 1 Number of Lines 1 Mounting Location Surface Caller ID No Enclosure Material Plastic Enclosure Rating NEMA 3R Includes Enclosure Yes Maximum Operating Temperature 131 Degrees F Minimum Operating Temperature -4 Degrees F