Mozilla/5.0 (Linux; U; Android 2.3; xx; MI 2S Build/JRO03L) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0 MobileSafari/534.13;Grandstream Model HW GXV3275 V1.4B SW 1.0.3.22 DevId 000b825e66ad