Hi Cedric, tanks for your answer.

2014-07-12 8:28 GMT-03:00 CedrIc Jehasse <[email protected]>:

> Hi,
>
> On 11 Jul 2014, at 19:32, Jerônimo Lopes <[email protected]> wrote:
>
> Hi,
>
> I'm trying to use ofono and a Huawei E3131 modem.
>
> First off all, I need to change AT+CGDATA="PPP",%u to ATD*99***%u# to make
> it work. But that's ok.
>
> The problem, is if disconnect, and try to connect again, it doesn't work.
>
>
> I’ve seen the same behaviour with an Huawei E303.
> The problem with the E303 is oFono sends AT&C0 to the modem to avoid DCD
> drops after the disconnect, but the modem drops it anyway. This causes a
> tty hangup, and oFono can’t send commands to the modem port anymore.
>
> The E3131 could have the same bug…
>
> regards,
> Cedric
> ​
>

Yes, I just got a E303 and it has the same problem.

Is there any workaround for this? At least here in Brazil, this models,
E3131 and E303 are really common.
​

> ​
>
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