GPRS over WiFi LAN

I'm not too au faix as yet with GPRS, I am playing around a wee bit
with the settings on my Sony Ericsson Z600 but am wondering; the data
settings on the phone allow for GPRS or GSM.

If I get the settings correct should my GPRS be able to communicate
with my own home WiFi set up and therefore access the internet via my
ADSL connection.

Geoff Lane



Geoff Lane

On Mon, 26 Sep 2005 21:32:44 +0100, Geoff Lane
<(E-Mail Removed)> scrawled:

>If I get the settings correct should my GPRS be able to communicate
>with my own home WiFi set up and therefore access the internet via my
>ADSL connection.
>
No.
--
Stuart @ SJW Electrical

Please Reply to group

On Mon, 26 Sep 2005 21:32:44 +0100, Geoff Lane
<(E-Mail Removed)> wrote:

>I'm not too au faix as yet with GPRS, I am playing around a wee bit
>with the settings on my Sony Ericsson Z600 but am wondering; the data
>settings on the phone allow for GPRS or GSM.

GPRS is a way of transmitting data over GSM whereby the AMOUNT OF
DATA, not the amount of minutes, is what costs money.

A normal GSM data call is charged by the minute (or by the second). So
if you use a GSM data call, and browse one WAP page, you get charged
for how long you took to read the page.

A GPRS data call is charged by the data. So if you use a GPRS data
call, and browse one WAP page, you only get charged for the tiny
amount of data for that one page, regardless of how long you spent
reading it.

(Exception to the rule: some GSM data phones allow you to terminate
the call even though the page is still on the screen. But you get the
idea.)

Also note that GPRS is a SUBSET of GSM. GSM is the general standard
for digital mobile phones; GPRS is a method for sending data in
"packets" (rather than in voice calls) over these types of networks.

>If I get the settings correct should my GPRS be able to communicate
>with my own home WiFi set up and therefore access the internet via my
>ADSL connection.

You can't use GSM (nor GPRS) to communicate with WiFi; wrong frequency
and wrong set of standards.

A GPRS connection will generally give you an IP address which
essentially places your phone on the Internet already. However, most
networks restrict you to a "private IP space" which means you are in a
little playpen hidden away from the real Internet; you can connect
out, but people can't connect in. Additionally, some networks restrict
you to WAP pages only; sometimes you have to ask to have a "proper"
Internet connection that can do real Web browsing, FTP etc.

*IF* you have a "proper" IP connection - which can be vanilla GSM but
is more likely on GPRS - then you can communicate with your home ADSL.
You won't save any money because the data will be going in this route:

1. Your phone, then
2. Nearest transmitter (normally, top of nearest big hill, 2-3 miles)
3. Service provider's network (eg. O2 or Vodafone)
4. Internet
5. ISP's network (eg. Wanadoo, BT Broadband, NTL)
6. Your computer in your house.

I use this to control my computer from my mobile phone even when I'm
hundreds of miles away. You can get the software here but you need to
be quite an advanced user to set it up:

http://j2mevnc.sourceforge.net/
....view and control my Windows/Linux/Mac PC desktop from my mobile
(VNC)

http://www.xk72.com/midpssh/
....view and control my Linux commandline from my mobile
(SSH)


--
Andrew Oakley andrew/atsymbol/aoakley/stop/com
Gloucestershire, UK

On Mon, 26 Sep 2005 22:36:05 +0100, Lurch <(E-Mail Removed)>
wrote:

>>If I get the settings correct should my GPRS be able to communicate
>>with my own home WiFi set up and therefore access the internet via my
>>ADSL connection.
>>
>No.

Why not? Reason I ask is that a couple of weeks back I emailed my
mobile phone provider and asked if I could connect my laptop, via
bluetooth, to my mobile and use the mobile's GPRS to access the
internet.

They said this could not be done, this group advised me how and it
works fine.

Emailed my network with details, they thanked me very much for info
and gave me some free calls.

Geoff Lane

On Tue, 27 Sep 2005 14:38:54 GMT, Andrew Oakley
<(E-Mail Removed)> wrote:


>>If I get the settings correct should my GPRS be able to communicate
>>with my own home WiFi set up and therefore access the internet via my
>>ADSL connection.
>
>You can't use GSM (nor GPRS) to communicate with WiFi; wrong frequency
>and wrong set of standards.

I think I may have poorly worded my question, my phone has Bluetooth
as has my laptop. The phone already has a connection to the computer
so I was wondering if the computer's own connection to the internet
could be used as a gateway for the mobile phone to connect.

I appreciate some may ask why I would want to do this, curiosity,
learning and an extra option is always handy.

Geoff Lane

On Tue, 27 Sep 2005 14:38:54 GMT, Andrew Oakley
<(E-Mail Removed)> wrote:


>*IF* you have a "proper" IP connection - which can be vanilla GSM but
>is more likely on GPRS - then you can communicate with your home ADSL.
>You won't save any money because the data will be going in this route:
>
>1. Your phone, then
>2. Nearest transmitter (normally, top of nearest big hill, 2-3 miles)
>3. Service provider's network (eg. O2 or Vodafone)
>4. Internet
>5. ISP's network (eg. Wanadoo, BT Broadband, NTL)
>6. Your computer in your house.
>
>I use this to control my computer from my mobile phone even when I'm
>hundreds of miles away. You can get the software here but you need to
>be quite an advanced user to set it up:

I've played about a wee bit with VNC and VPN but am not (at the moment
anyway) looking to control the computer with my mobile.

Geoff Lane

Geoff Lane wrote:

>
> I think I may have poorly worded my question, my phone has Bluetooth
> as has my laptop. The phone already has a connection to the computer
> so I was wondering if the computer's own connection to the internet
> could be used as a gateway for the mobile phone to connect.
>

I do that all the time with my SE P910. If it is bluetoothed to the
laptop when it has a wifi or ethernet connection it will use that link,
otherwise it will use the GPRS link in the phone.


--
Tony

"I did make a mistake once - I thought I'd made a mistake but I hadn't"
Anon

On Tue, 27 Sep 2005 17:48:33 +0100, Geoff Lane
<(E-Mail Removed)> scrawled:

>On Mon, 26 Sep 2005 22:36:05 +0100, Lurch <(E-Mail Removed)>
>wrote:
>
>>>If I get the settings correct should my GPRS be able to communicate
>>>with my own home WiFi set up and therefore access the internet via my
>>>ADSL connection.
>>>
>>No.
>
>Why not?

Now I see you've reworded your question into a completely different
question further down I see what you're trying to do!

GPRS is nothing to do with wireless connections as such, it's just
like a mobile version of ISDN or ADSL, it needs something else to
connect over.

You can, as has been pointed out, connect your phone to the PC and use
the PC's internet connection but this doesn't involve GPRS and as I
have no inclination of ever doing it as I can see absolutely no reason
to ever require such services then I don't know how exactly to do it.

Glad we cleared that up.
--
Stuart @ SJW Electrical

Please Reply to group

On Tue, 27 Sep 2005 19:43:34 +0100, Lurch <(E-Mail Removed)>
wrote:

>>>No.
>>
>>Why not?
>
>Now I see you've reworded your question into a completely different
>question further down I see what you're trying to do!

Yes, I did re-read my original and agree the wording did suggest I was
hoping to use GPRS to connect to the WiFi whereas I really meant my
home network, which has WiFi.

>Glad we cleared that up.

On reflection and on reading a few replies, it looks as though a
mobile will not be able to connect to a LAN as they all appear to need
a GSM or GPRS specific setting.

I was hoping to use the Bluetooth to connect to a specific machine
then use that machine as a gateway to the internet.

Geoff Lane

On Tue, 27 Sep 2005 18:33:45 +0100, Tony Raven <(E-Mail Removed)>
wrote:

>> I think I may have poorly worded my question, my phone has Bluetooth
>> as has my laptop. The phone already has a connection to the computer
>> so I was wondering if the computer's own connection to the internet
>> could be used as a gateway for the mobile phone to connect.
>>
>
>I do that all the time with my SE P910. If it is bluetoothed to the
>laptop when it has a wifi or ethernet connection it will use that link,
>otherwise it will use the GPRS link in the phone.

Ah, that is intersting, what settings do you use then for AP name, IP
address.

I've got a laptop connected via an ADSL router, the laptop gets a
dynamic IP address but I can set this to static; do you set up a
network bridge between the Bluetooth and the Network adapter.

Geoff Lane