On Mon, Aug 15, 2016 at 5:02 PM, Aleksander Morgado < aleksan...@aleksander.es> wrote:
> On Mon, Aug 15, 2016 at 12:51 PM, Ajay Garg <ajaygargn...@gmail.com> > wrote: > > Thanks Aleksander for the reply. > > > > A small query, if a modem supports both DirectIP and QMI, which is the > > recommended mode? > > > > If I'm not mistaken, Sierra Wireless is suggesting to use QMI or MBIM, > they are obsoleting Direct IP. > Cool... that's what I am using right now .. > > > AT-command-set is highly modem-specific, while QMI is a > standard-protocol. > > So, if there are "n" modems supporting both DirectIP and QMI, they are > > guaranteed to expose identical QMI "APIs", while their AT "APIs" could > > potentially be different. > > > > Are my thoughts in line? > > Not really. Different QMI modems may also use different versions of > the protocol; e.g. some newer QMI devices don't support the generic > DMS commands we use to manage SIM-PIN, and we need to use some new UIM > service specific commands for that. So the picture is not so clear > with QMI either. > Ahh ... but I guess QMI-road would lead to convergence, whereas AT-road is unlikely to. > > If you're happy with the ModemManager interfaces, though, none of this > should matter to your implementation. ModemManager should provide the > same functionalities in both Direct IP and QMI modes, at least for the > subset of features you're looking for (connection, SMS messaging, > signal quality retrieval). > Awesome !! Once again, thanks a ton Aleksander and everyone else for all the help during the last few days !! I am highly grateful to all of you .. Thanks and Regards, Ajay > > -- > Aleksander > https://aleksander.es > -- Regards, Ajay
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