7" touch screen Grandstream Video voip phone GXV3175 1.with 800 x 480 resolution 2.a tiltable ... mega pixel CMOS camera 7" touch screen Grandstream Video voip phone GXV3175The GXV3175 represents the future in personal IP multimedia communication ... -in-Picture), on-screen display, audio mute, camera block, video phone book, still picture capture/store, video recording, visual voice message ...