Stephen Henson wrote:
> > >I have a t-mobile payg sim, without any web'n'walk.
> > >
> > > Their terms and conditions (like most mobile cos.) are v. confusing. Am I
> > > entitled to use my phone as a modem to connect to the internet?
> > >
> >
> > In answer to my own question. T-mobile Customer Service rang back in
> > response to an email I sent them with this question (well done - I wishall
> > CS were this good). Short answer is that the T&C allow it.
>
> The website implies you are automatically on Web'n'Walk for PAYG which
> is 0.73p per KB with a maximum daily charge of £1.
>
> Then CS reply contradicts their own website but it isn't entirely
> unknown for CS to give out invalid information.
>
> It specifically prohibits modem use though no one is sure how they'd
> know unless you connnect to something like Windows update which a
> handset is unlikely to do by itself :-)
HTTP headers ought to do it.
If I connect to
www.showmyip.com from my laptop, it says (using the
data that your browser passes on to every website that you visit):
"Browser: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET
CLR 2.0.50727)"
If I use my MDA, it says:
"Browser: Mozilla/4.0 (compatible; MSIE 4.01; Windows CE; PPC; MDA
Vario/2.0 Profile/MIDP-2.0 Configuration/CLDC-1.1)"
If the web server I'm talking to knows this information, then my ISP
certainly knows it. While I'd be amazed to find that T-Mobile check the
headers of all HTTP traffic to make sure that the device is claiming to
be a phone and not a computer, they can if they want to.
In practice, I'd imagine they look into whether you're keeping to these
T&Cs only if usage exceeds a certain number of gb per month, since
you're unlikely to achieve more than a couple of gigs on a smartphone
unless you use it for VoIP or as a modem (both banned, of course).
(obTechieDigression: if you're using a geek-friendly browser, you can
set the HTTP headers to whatever you like, and therefore can pretend
that your PC is a smartphone. If anyone actually bothers to do this,
then they probably should look into acquiring some kind of
girlfriend/boyfriend...)
--
John Band
john at johnband dot org
www.johnband.org