Hello All,

quick question relating to the best practise for an application I'm 
tinkering with.  i'm not experienced with GPRS/WAP or WML but I have a 
few ideas and I need to establish whether I'm barking up the right tree 
here.

The basic application will be a remote GSM/GPRS modem device (which may 
additionally have GPS on there) which will periodically (approx every 10 
minutes) return a small amount of data to a central location (probably 
just temperature information and an ID - maybe additionally GPS info  as 
described before). I'll be using GPRS as SMS would be too expensive.

I've been experimenting with a GPRS phone (Nokia 6310i) and this is 
limiting me to the http protocol as this is all that is supported by this 
phone over GPRS, so I have been playing around with our server to make it 
support WAP, created an asp page and used a 'get' string 
(like "http://myserver.com/wap-process.asp?name=Fred&ID=14&colour=blue") 
to update data on my sql server.  So far so good.

Due to my limited experience in the field, the above example is the only 
real way I can think of transferring the data across.  Now I know it will 
depend on the capabilities of the GSM/GPRS modem we end up using and 
there may well be other protocols available to me, but I can't 
realistically think of many other useful ways of achieving this data 
transfer, for example, I'm hardly going to ftp it across, am I! (or am 
I? :o))

My question is really, is this the best way of going about doing this? 
Bearing in mind that there could eventually be thousands, even tens of 
thousands of these small modem devices out there transmitting their 
information back to our web server every 10 minutes (it should only ever 
be a few hundred bytes at a time), is there any better way of doing this?

Like I say, there may well be a standard way of doing this... I've only 
ever really dealt with SMS before and that's a whole new kettle of fish 
anyway.  I also want to be able to identify the incoming mobile number 
when the asp page is called over wap, but I would guess this is not going 
to be easily accessible and I would be far better off programming this 
into the sending logic on the gprs modem device as part of the 
transmission string, right?