Replace SendDTMF by StartDTMF/StopDTMF in maemo6
Replace SendDTMF by StartDTMF/StopDTMF in maemo6

SendDTMF method call is replaced by StartDTMF/StopDTMF in maemo6 telephony
driver. StartDTMF/StopDTMF places DTMF tone in queue on modem side playing
it minimum required time. When using SendDTMF, modem ignores new tone
until currently playing one is not finished.

Downside of StartDTMF/StopDTMF combination is absence of audio feedback to
hands-free.

mapfau/bluez,pstglia/external-bluetooth-bluez,pkarasev3/bluez,pkarasev3/bluez,mapfau/bluez,pkarasev3/bluez,pstglia/external-bluetooth-bluez,ComputeCycles/bluez,ComputeCycles/bluez,silent-snowman/bluez,mapfau/bluez,silent-snowman/bluez,mapfau/bluez,ComputeCycles/bluez,silent-snowman/bluez,silent-snowman/bluez,pstglia/external-bluetooth-bluez,pstglia/external-bluetooth-bluez,ComputeCycles/bluez,pkarasev3/bluez