I understand this issue with cellular end-points. I saw a comment on one of the two previous posts here, where a user complained it was impossible to obtain static IP allocations for setting up their own "servers". I found this odd, since in my own history this has never been a problem for a nominal fee, even when I had a 9600Baud modem connecting my network with PPP. I am now wondering, if perhaps I've misinterpreted the concern, that people would like to be able to serve content from their smart phones with fixed IPv4 addressing? What is the actual use case for this?