Re: A general (learning) query

[Mauricio Tavares <raubvogel gmail com>]

On Tue, Jun 12, 2012 at 3:41 PM, Mauricio Tavares <raubvogel gmail com> wrote:
> 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?).
>
   NVM, it took the init string. But, it might be easier to use a
terminal program here.

>>
>> 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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