Alaska Software Inc. - GPRS and SOAP
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AuthorTopic: GPRS and SOAP
Bengt OveliusGPRS and SOAP
on Tue, 02 Dec 2003 08:53:48 +0100
Many GSM -phones have GPRS today,
If such a phone is connected to a PC computer,
(via cable,IR, bluetooth...)

is it then possible  to use a soap-protocol
to excange information with other PC's on the internet ?

Is internet available in the phone without dialing a serviceprovider ?

GPRS makes it possible to be connected continously, only
the amount of bytes transfered are charged,

Can anyone explain what possibilities
(and limitations)
 ASINET, XB2NET  etc....
might offer in combination
with GPRS

It is not yet clear to me exactly
how GPRS works and how it is
configured.

Thanks
Bengt Ovelius

GPRS=General Packet Radio System
http://www.mobilecomms-technology.com/projects/gprs/
Phil Ide
Re: GPRS and SOAP
on Tue, 02 Dec 2003 12:12:24 +0000
Bengt,

> Many GSM -phones have GPRS today,
> If such a phone is connected to a PC computer,
> (via cable,IR, bluetooth...)
> 
> is it then possible  to use a soap-protocol
> to excange information with other PC's on the internet ?
> 
> Is internet available in the phone without dialing a serviceprovider ?

As far as I know, you are using your phone merely as a modem/gateway.  I'm
not sure about GPRS.  This may require you to dial into an ISP or it might
get handled automatically for you by your telephone service provider.

Either way, you should be able to exchange SOAP messages across the
internet.

Regards,

Phil Ide

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* Xbase++ FAQ, Libraries and Sources: *
* goto: http://www.idep.org.uk/xbase  *
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Bengt OveliusRe: GPRS and SOAP
on Tue, 02 Dec 2003 15:46:42 +0100
I had some discussion with specialists behind the
mobile phone systems.

SOAP is increasingly important for different puroses
SOAP is also used in the background transport of MMS
messages, according to MM7 specifications. !!

Anyway, their guess is that the GPRS is totally transperent.
The end user will have no idea if the connection is GPRS,
or a plain internet cable.

However,
what happens :

If a lap-top user sends a SOAP message over  his mobile and  GPRS ?

The Soap-message must have an address like

http:\central_computer.org/jsa/asdjk/requests

What will the return -address look like,
that central computer will use to send a reply back
to the lap-top-  and GSM-phone.  ??

I will soon start testing this,
but I would appreciate any comments that would help
to find the right direction !

The basic principle of GPRS + SOAP  might prove
extremely cheap ,powerful  and  simple ,
if it works  !

Regards
Bengt Ovelius
Boris Borzic Re: GPRS and SOAP
on Tue, 02 Dec 2003 15:50:13 +0100
"Bengt Ovelius" <picotech@telia.com> wrote in news:3fcca55c$1
@asgcom.alaska-software.com:

> If a lap-top user sends a SOAP message over  his mobile and  GPRS ?
> 
> The Soap-message must have an address like
> 
> http:\central_computer.org/jsa/asdjk/requests
> 
> What will the return -address look like,
> that central computer will use to send a reply back
> to the lap-top-  and GSM-phone.  ??

Your laptop will establish a TCP/IP connection with the server. Once the 
connection is created, the romote computer will use that connection to send 
the reply back. 

Best regards,
Boris Borzic

http://www.Xb2.NET
http://www.SQLExpress.net
industrial strength Xbase++ development tools
Phil Ide
Re: GPRS and SOAP
on Tue, 02 Dec 2003 15:58:02 +0000
Bengt,

>> If a lap-top user sends a SOAP message over  his mobile and  GPRS ?
>> 
>> The Soap-message must have an address like
>> 
>> http:\central_computer.org/jsa/asdjk/requests
>> 
>> What will the return -address look like,
>> that central computer will use to send a reply back
>> to the lap-top-  and GSM-phone.  ??
> 
> Your laptop will establish a TCP/IP connection with the server. Once the 
> connection is created, the romote computer will use that connection to send 
> the reply back. 

To expand on this:

Your application (browser or whatever) establishes a connection.  Once the
connection is established, there is a conduit (or pipe if you prefer) with
one end anchored at the server, the other at your application.  Only when
this is established is the message sent.  The pipe remains open until the
server returns it's 'result'. After shoving it's data down the pipe, the
server then closes the pipe without waiting for your application to
receive.

TCP/IP allows one end of the pipe to be closed and the other end remain
open for reading.

Regards,

Phil Ide

***************************************
* Xbase++ FAQ, Libraries and Sources: *
* goto: http://www.idep.org.uk/xbase  *
***************************************

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João Pedro Machado de Sousa Re: GPRS and SOAP
on Tue, 02 Dec 2003 14:45:28 +0000
Hi Bengt

> is it then possible  to use a soap-protocol
> to excange information with other PC's on the internet ?

You can do anything you do with a normal Internet connection
 
> Is internet available in the phone without dialing a serviceprovider ?

Your phone company must provide you this service and give you the
configuration needed. As far as your computer is concerned, your celular is
a modem.
 
> GPRS makes it possible to be connected continously, only
> the amount of bytes transfered are charged,

Correct. But it can become very expensive, trust me. I use it very often.
 
> Can anyone explain what possibilities
> (and limitations)
>  ASINET, XB2NET  etc....
> might offer in combination
> with GPRS

The only limitation is speed (about the same of an analog connection) 

Very Best Regards

João Pedro Machado de Sousa