AT command for query pdp context status on ZTE AC2791( MDM6600 chip set)

[david preetham]

Hi Dan,
Thanks for reply.
Yes I am able to see the ppp0 interface up and IP address.
Since as per requirement in between in need to check the data service
status.
for that I use to query the device for connection status for other GSM
models.
Similarly I am finding alternate for CDMA device also.
Regards,
David




On Wed, Jan 22, 2014 at 9:48 PM, Dan Williams <dcbw at redhat.com> wrote:

> On Wed, 2014-01-22 at 17:24 +0530, david preetham wrote:
> > Hi,
> > On modem interface i am able to connect the service provider using AT
> > commands,
> > I have requirement to know the status of PDP (connected or disconnected).
> > Is their any AT commands to know the status? I don't have spec for AT
> > commands.
> > I tried to print AT commands supported AT&V no command helpful.
> >
> > I tried AT+CREG, AT+CGACT,AT+CGATT this commands are not supported.
> > Is their anyway to know the pdp context status
>
> This is a CDMA device and thus it likely doesn't support most of the
> 3GPP AT commands.  Which also means it does not have PDP contexts at
> all, since that's a 3GPP-only thing.  These modules support the IS-707
> command set for CDMA devices, but that does not have any useful
> commands.
>
> Instead, you're stuck using QCDM/DIAG, which is a binary protocol that
> older Qualcomm chips often support.  However, we haven't
> reverse-engineered any of the QCDM commands that would indicate data
> service status.
>
> Since this device uses PPP though, couldn't you use the existence of a
> PPP session on the host to determine whether or not the modem has an
> active data connection?
>
> Dan
>
>
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