[Gta04-owner] Detect Call Hangup / Option Datasheet

[Marcel Holtmann]

Hi Nikolaus,

<snip>

> >>> form factor. Or you start looking at getting Telit or IFX based modems.
> >> 
> >> We did that and at the time we decided, their modems were horribly
> >> big. So we would have had to sacrifice the handsfree speakers to
> >> get it into the existing case...
> > 
> > The Telit modem is indeed not small. At least the ones that I have seen
> > so far.
> > 
> > And most likely Infineon (actually Intel now) might not wanna give you a
> > good deal or small quantities for the 6260 or similar modems. Have you
> > tried to ask?
> 
> Only with manufacturers of complete modules. The key issue we have
> is that we need a module and not a chipset. I.e. we can't build our
> own modem.
> 
> With a chipset and access to the firmware we would have to pay for
> full FCC and R&TTE certifications... With a complete pre-certified 
> module we simply write "contains FCC ID abcdef".

you might be right here. I don't think we ever got the IFX modem as
module.

On that topic of modules, why do you guys went for USB based module and
not some SDIO or similar bus? The USB can be pretty power hungry. And
even USB auto-suspend might be a problem when you have to wake it up
again for cell change or signal strength notifications.

Regards

Marcel