I recently purchased a Pepwave Surf SOHO MK3 router. It is fully deployed, in service, and doing a great job. During recent weeks I also was looking for a Flip phone for my wife - she doesn’t like Smart phones. I identified an Alcatel Go Flip 3 (model 4052W) as the phone I wanted for several reasons. At this time we have become increasingly dependent on our internet service: shopping, Medical info, etc. So I was interested to have an alternate feed in case our normal Cable internet went out. This phone specs showed both Wifi Hotspot and USB Tethering capabilities. I looked at Peplink’s published list of compatible 4G LTE USB modems, and didn’t find much for the US. Most of the few US devices are no longer available, or insanely expensive.
I can confirm that the Alcatel Go Flip 3 can serve as an alternate WAN feed to the Surf SOHO, either in Hotspot mode, or via USB Tether, in case anyone is interested. I bought this phone from Tello Mobile (unlocked), running on the T-Mobile network, for $85, with a very cheap service plan. Today this phone is $219 on Amazon. If needed, I can use the phone for link long enough to upgrade the service plan to include more Data, to get thru an outage. I hope this information is useful to someone.