No voice commands from base station

I've had my system about 2 weeks. Key pad kept saying "out of range'. I would touch a key, it would try to connect, I would enter code, but still got error message.  Finally removed and reinstalled keypad batteries, all is well.  However, now, the voice commands don't play from the base station. I've checked the setup, changed the voice volume levels, but still no voice commands. System seems to arm and disarm ok, but no voice or open door chimes, etc.  Help!