Fanvil H2U-W. Product type: IP Phone, Product colour: White, Handset type: Wired handset. Dual-Tone Multi-Frequency (DTMF) modes: In-band, Out-of band, SIP info. Lines quantity: 2 lines. Volume control: Buttons, Management platform: TP/TFTP/HTTP/HTTPS/DHCP, OPT66/SIP, PNP/TR-069. Voice codecs: G.711a,G.711u,G.722,G.726,G.729A,OPUS,iLBC