Has Nokia released any how-to-use documentation/features about TTS Api for newer Nokia phone models?

I need to find answer to these questions:

1) How to override phone language selection? (now Text-To-Speech's spoken language is always same as phone language selection. For example if user uses different language selection than english, TTS will announce english very badly)

2) How to make TTS to announce TInt numbers (for example 205) like two-hundred-five instead of two-zero-five?

3) How to make volume setting for TTS? (so user can adjust volume)

Thanks for advance.