20
Figure 31: PIN Management
3.6.5 SIM Lock
This feature may be used to lock the SIM card to the operator's network (Figure 32). Each operator has a
unique Public Land Mobile Network (PLMN) number. Locking the SIM prohibits the users from accessing
another operator's network.
Figure 32: SIM Lock
3.7
Security Menu
3.7.1 Firewall Settings
When using a firewall server in the local network, invoke this setting to enable or disable the firewall for this
CPE (Figure 33).
Figure 33: Firewall
3.7.2 MAC Filter
Media Access Control (MAC) Filtering allows you to identify a list of devices either allowed to access or
forbidden from accessing the network through the CPE (Figure 34). Select
Enable
to enable MAC filtering,
and then determine whether you will allow or forbid the defined MAC addresses to access the network.
