Hi,
> > Perhaps you want to break up the attributes into two:
> >
> > FooMailWaiting -> True / False
> > FooMessages -> Number, with 0 in case we're not sure
>
> We can do that although I think the setting to 0 or 1 when we're not
> sure is a good enough approximation? The 1 being a little lie.
Lets go with two attributes. It should give the UI a chance to display the
indicators differently, depending on what the carrier supports.
> Err, yes we can, but then we don't account for the little corner cases
> like the two mentioned:
>
> * Special Message Indication IEI says discard the message but DCS
> says store it.
Sure we do,
if sms_contains_special_vm_iei(sms):
discard = extract_discard_from_iei_data
// Quote relevant part of the spec here
if mwi_dcs_decode(sms, ... ,dcsdiscard)
discard = discard || dcsdiscard <--- here
return
> * Special IEI says there are 3 emails waiting and DCS says there's a
> voicemail message.
While the spec doesn't really forbid this, its not really in the spirit of
what is intended: "The third level is described here, and provides the maximum
detail level for analysis by the mobile, i.e. an indication of the number and
type of messages waiting in systems connected to the PLMN."
I say we don't worry about this case, just assume that the network provider is
sane.
> > This should not happen on any modern network, and we should not
> > give it to the MessageWaiting interface anyway, since there's nothing
> > useful it can do with it.
>
> It still gives us one piece of information: the message is concerning
> waiting messages. So perhaps it should be that interface providing
> the message and from there it can be displayed on the screen.
Yes, so we leave the option to do something about it later, but for now pure
"return call" messages are useless.
Regards,
-Denis
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