... ~ 893.8MHz I) Transmission: 1, 930 ~ 1, 990MHzIi) Reception: 824.2 ~ 848.2MHz Ii) Reception: 1, 850 ~ 1, 910MHz B) GSM 900: GSM ... : 890 ~ 915MHz I) Transmission: 1, 710 ~ 1, 785MHz Ii) Reception: 935 ~ 960MHz Ii) Reception: 1, 805 ~ 1, 880MHz 3) Channel space: 200kHz 4 ... ) User line, bell signal: In line with GB/T15279 5) Max ...