Mobian 'HotSpot"

[biketool]

I am not a radio/telephone professional.

but there is even a note on the Pure Talk website,  "default for all phones except iphones is Hot Spot turned off".

No extra charge to turn on the hot spot,  but you must request it.

Just sharing real time experiences,  what happens, and how I make it go.

I appreciate your report, we all have our areas of expertise, your contribution is important.
Since they can toggle a 'switch' I am pretty sure it is deep packet inspection, I would not use this data provider without either a scripted to run at network connection SSH tunnel to a server I had control of or a VPN provided by a privacy reputation VPN service(both encrypt all packets so they can NOT be inspected by service providers).  I feel like your cellular data service is tipping their hand and reminding us that we should be expecting and planning countermeasures for this common bad behavior like deep packet inspection and blocking legitimate data by our service providers.