7" touch screen Grandstream Video voip phone GXV3175 1.with 800 x 480 ... pixel CMOS camera 7" touch screen Grandstream Video voip phone GXV3175The GXV3175 represents the future in personal IP ... PoE, integrated WiFi (802.11b/g/n) Dual USB ports, SD/MMC/SDHC, headset, stereo audio output, ... on-screen display, audio mute, camera block, video phone book, still picture capture/store, video recording, visual ...