Android Question VOIP and TTS

Does your app automatically speak any incoming message? Why don't you show a notification instead?

Yes it speaks all incoming messages upon user preferences .. as he can chose some profiles:
silent - does not read sms
permanent - reads sms all the time
office - reads sms all time except when devices is found more that a predifined time in the same place (EX: stops reading sms while in the office
and he can chose to add an exception and read sms at home
Car standard - read sms only when driving
Transport - same as car standard with some time changes
Custom defined -

- Stop sms reading for chosen contact from agenda. (puts contact to black list ..and app does not read sms from them )
thanks for help

I think option are more powerfull than puting a notification ..
I could make a widgets that read sms ..but it wont be the same app any more , and people are already using these features.

I do not know what was in my head when puting such function .. I guess I see siri comercial from apple and belived it will be very smart to have
such function on the phone .
I hope others can comment upon these options . The single problem remains the VOIP .