[Gta04-owner] Polling CLCC error handling on Option modem (GTA04)

[Radek Polak]

Hi,
first of all QtMoko [1] now supports ofono as another telephony backend [2]. We 
have also autogenerated qt bindings [3] which can be interesting also for 
other projects.

But now the problem that has already been discussed. If you make call to GTA04 
with ofono running, it starts CLCC polling. After you hangup sometimes 
everything is ok and the call disappears:

fonod[1027]: App: < \r\n+CLCC: 1,1,4,0,0,"+420608828973",145\r\n\r\nOK\r\n
ofonod[1027]: App: > AT+CLCC\r
ofonod[1027]: App: < \r\nOK\r\n
ofonod[1027]: src/voicecall.c:ofono_voicecall_disconnected() Got disconnection 
event for id: 1, reason: 2
ofonod[1027]: App: < \r\n_OSIGQ: 18,0\r\n
ofonod[1027]: src/network.c:ofono_netreg_strength_notify() strength 58
ofonod[1027]: App: > AT+CLCC\r
ofonod[1027]: App: < \r\nOK\r\n

but sometimes the modem returns error:

ofonod[1027]: App: < \r\n+CLCC: 1,1,4,0,0,"+420608828973",145\r\n\r\nOK\r\n
ofonod[1027]: App: > AT+CLCC\r
ofonod[1027]: App: < \r\n+CME ERROR: 100\r\n
ofonod[1027]: We are polling CLCC and received an error
ofonod[1027]: All bets are off for call management

and ofono never reports that the call is removed. The result is that GUI shows 
dialed call forever.

I know that modem should not return error, but it would be nice to have at 
least some workaround. E.g. assume remote hangup or missed call.

Or anyone has better ideas?

Regards

Radek


[1] http://qtmoko.org
[2] 
https://github.com/radekp/qtmoko/tree/master/src/server/phone/telephony/phoneserver/ofonoservice
[3] https://github.com/radekp/qtmoko/tree/master/src/libraries/qofono