Re: A general (learning) query

[Mauricio Tavares <raubvogel gmail com>]

On Tue, Jun 12, 2012 at 2:49 PM, Ajay Garg <ajaygargnsit gmail com> wrote:
> The ISP details are ::
>
> Country  :  Uruguay
> Provider :  Ancel
> Plan      :  GPRS
>
      Do I take you do not know this modem's initialization string?

      If I were in your shoes, I would first identify how the modem is
being seen by the OS. Then maybe use minicom or something and try to
talk to it. And then see if you can come up with an initialization
string it likes and then try to manually dial out (call your own
phone?).

>
> Thanks and Regards,
> Ajay
>
>
> On Wed, Jun 13, 2012 at 12:11 AM, Ajay Garg <ajaygargnsit gmail com> wrote:
>>
>> Hi Experts :)
>>
>> I am trying to connect via a 3G USB modem (via wvdial), and get the
>> following error ::
>>
>>
>> ############################################################################
>> -bash-4.1#  wvdial
>> --> WvDial: Internet dialer version 1.61
>> --> Cannot get information for serial port.
>> --> Initializing modem.
>> --> Sending: ATZ
>> ATZ
>> OK
>> --> Sending: ATQ0 V1 E1 S0=0 &C1 &D2
>> ATQ0 V1 E1 S0=0 &C1 &D2
>> OK
>> --> Modem initialized.
>> --> Sending: ATDT*99#
>> --> Waiting for carrier.
>> ATDT*99#
>> ERROR
>> --> Invalid dial command.
>> --> Disconnecting at Tue Jun 12 15:35:16 2012
>>
>> ############################################################################
>>
>>
>> I have googled, and found quite a posts.
>> However, all these points discuss about implementation details, and I am
>> feeling overwhelmed.
>>
>> I will be grateful if someone could please point me to some literature,
>> that states the entire lifecylce of USB modem connection
>> In particular, I don't quite understand how some particular AT commands
>> are linked to the USB-model/ISP/APN.
>>
>> Any help will be a big boost to solving the specific problem at my end.
>>
>>
>>
>> I will be really grateful guys.
>>
>>
>> Thanks and Regards,
>> Ajay
>
>
>
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