AudioCodes 445HD, IP Phone, Black, Wired handset, SIP info, 8 lines, Buttons AudioCodes 445HD. Product type: IP Phone, Product colour: Black, Handset type: Wired handset. Dual-Tone Multi-Frequency (DTMF) modes: SIP info. Lines quantity: 8 lines. Volume control: Buttons. Display: LCD, Display diagonal: 10.9 cm (4.3"), Display resolution: 480 x 272 pixels