A Public Land Mobile Network (PLMN) is a combination of wireless communication services offered by a specific operator in a specific country. A PLMN is identified by a globally unique PLMN code, which consists of a Mobile Country Code (MCC) and a Mobile Network Code (MNC).
FortiExtender (Standalone) uses a PLMN list to identify the carrier of the SIM cards you are using.
You can also use the following commands to add customized entries to the PLMN list to support the SIMs of unlisted carriers, or create a new PLMN list of any listed carrier:
FX201E5919000035 # config lte simmap
FX201E5919000035 (simmap) # show
config lte simmap
FX201E5919000035 (simmap) # edit 1
FX201E5919000035 (1) <M> # set mcc 332
FX201E5919000035 (1) <M> # set mnc 321
FX201E5919000035 (1) <M> # set carrier <carrier name>
FX201E5919000035 (1) <M> # next
FortiExtender (Standalone) automatically switches its modem firmware based on the carrier and technology you are using. If the carrier can’t be identified or is unlisted, the generic firmware is used. The generic firmware works with most carriers.
To help FortiExtender (Standalone) recognize the correct carrier name, you can add the MCC and MNC to the configuration file, but this isn’t required normally.