WiFi without internet on a Southwest flight
I&#x27;m an Alaska (relatively) frequent flyer.  That airline offers a free &quot;messaging&quot; plan, that lets you send and receive messages on apps like iMessage, Facebook Messenger and Whatsapp.  Though, it somehow prevents images&#x2F;attachments from coming through on those platforms.<p>I&#x27;ve always wondered how this is implemented technically, and if it might be possible to setup some kind of protocol&#x2F;wrapper to send data that looks like it&#x27;s being sent over those protocols, but offers access to other parts of the internet.