Description
Yealink SIP-T57W. Product type: IP Phone, Product colour: Grey, Handset type: Wired handset. Dual-Tone Multi-Frequency (DTMF) modes: In-band, Out-of band, SIP info. Phonebook capacity: 1000 entries. Volume control: Buttons. Display diagonal: 17.8 cm (7"), Display resolution: 800 x 480 pixels