Graeme
Thu Mar 27 03:36:04 PDT 2008
If you want to send SMS or just make a GPRS connection your quickest
solution is to the make the connection yourself and ignore the CE6.0 RIL
layers and TAPI. SMS are just AT commands, send them straight to the serial
port of the modem.
To make a data connection simply make a dial up connection on the serial
channel of the modem, sending down the *99# number to make a data
connection, and incldue the AT commands for the APN, the username and
password in the dial up connection are the GPRS username/password for the
network, hey presto a data connection will be made.
If you want to manage other AT commands at the same time you will need a MUX
to split the virtual serial ports. We have a lot of experience in modem
addess, I've used CE6.0 TAPI layers with a CE6.0 RIL, but for basic work you
don't need this complexity.
--
--
GraemeW
Web -
http://www.bytesnap.co.uk
Blog -
http://ce4all.blogspot.com
"Paul G. Tobey [eMVP]" <p space tobey no spam AT no instrument no spam DOT
com> wrote in message news:ueqqc1QiIHA.6136@TK2MSFTNGP03.phx.gbl...
> That depends on the radio, in the same way that control over a modem using
> Hayes commands depends on whether the modem supports them or not. There
> are serial GSM modems that can do this. Search the archives of the groups
> microsoft.public.windowsce.* using GoogleGroups and I think you'll find at
> least one or two references.
>
> Paul T.
>
> "Ajith" <Ajith@discussions.microsoft.com> wrote in message
> news:44D97E2E-DEA1-4656-95EB-091AF1FC27C5@microsoft.com...
>> Hi,
>> I wanted to know whether itd posssible to connfigure/ control radio of
>> the
>> GSM modem only through AT commands using TAPI interface?
>> Anybody did something similar?
>> regards
>> Ajith
>>
>> "prabu" wrote:
>>
>>> Hi Ajith,
>>>
>>> Refer to the following article
>>>
>>>
http://e-consystems.com/gprs.asp
>>>
>>> Prabu.
>>>
>>> "Ajith" wrote:
>>>
>>> > Hi All,
>>> > We intend to develop an automotive device which uses GSM/GPRS
>>> > connection to
>>> > communicate to a server to transfer data periodically on WinCE
>>> > 5.0.There is
>>> > no voice call support.
>>> >
>>> > Anybody has experience on the same as i am new in this field
>>> >
>>> > Can i use TAPI/Unimodem driver and the serial interface for such an
>>> > application?
>>> > Do i need to develop a new driver for the modem or the Unimodem.dll is
>>> > enough?
>>> > Is it possibile to control the radio like network selection,
>>> > roaming etc at the application level using TAPI interface and AT
>>> > commands?
>>> >
>>> > Is there any better way of doing it in CE 5.0?
>>> > Thanks in advance
>>> > Ajith
>
>