Applicable to: Suitable for campus schools, farms, prisons, military and other places, this phone has automatic dialing function, support RJ11 wiring.

Product function description:

1. Support 4G Netcom

2. Anti-violence metal shell, surface powder paint

3. Plug and play, 4G big card small cartoon

4. Call duration / telephone working hours / lock network, controllable

5. With normal dialing function, also supports speed dialing

6.. Support black and white list, remote upgrade program