Not for the campaign
I bought this equipment to replace an old Huawei 4g router whose latest firmware dates back to 2016. This Huawei works perfectly but can no longer be updated.
The D-link Dwr-921 is unable to pick up any 3g/4g network, even though it is positioned in the same place as the old Huawei. Connecting to an external antenna doesn't improve matters: no network with 3 different sim cards.
I tested it in an urban area to be sure of the configuration of my sim card: the connection is established, but poorly.
So there's no point as far as I'm concerned.