Chris Green wrote:

> So does just trying to connect *to* the device which has the data sim
> dongle wake up the connection?

A *little* bit more than that, a lot of 4G dongles still pretend to be
modems, using e.g. ATDT*99# command to "dial" the connection, no
dialling takes place, but it's a convenient lie to allow a PPP daemon to
bring up the 4G connection and get an IP addr etc.

> It means one needs a dynamic DNS
> service but that's not a big problem.

That'll work, provided your mobile provider gives you a public IP
address, not a private one that's NATed.

--- SoupGate-Win32 v1.05