Problems with voice call.

[Denis Kenzior]

Hi Marko,

> Hi denkenz,
>
> thanks for the reply. I was not sure about the voice call features of
> the modem. Now when I searched the answer I found out that the modem
> does not in fact support voice calls.

Yes, oFono's current implementation does not understand hardware specifics.  
The current atmodem driver assumes a fully featured modem with perfect fluency 
in 27.007 & 27.005.  Obviously this is wrong for real modems.  Mostly this is 
because we were concentrating on getting the high level features working, 
before delving into hardware specifics.

>
> I did not realize this at first, because ofono offered the possibility
> for voice calls (loaded for example the VoiceCallManager interface). For
> SMS ofonod says
>
> ofonod[7906]: SMS not supported by this modem.  If this is in error
> please submit patches to support this hardware
>
> however the modem has a support for SMS, which I also tested with the
> windows drivers that were delivered with the modem.
>

I've seen this reported at least twice now.  Which means that my SMS support 
detection in atmodem driver is probably not quite correct.  Would you be able 
to report at which point in the drivers/atmodem/sms.c initialization that this 
fails?

> Maybe there could be similar "not supported" feature for the voice call
> plugins?

27.005 defines at least some rudimentary way to detect whether SMS is supported 
by the modem or not.  Unfortunately 27.007 doesn't have an equivalent for 
voice calls.  The generic driver will do its best to figure out what is 
supported or not supported, but it will be up to the device-specific driver to 
have the final say.

Regards,
-Denis