Check that you have not turned off the sound from the application settings menu. Check that your device is not in silent mode.
- Can I get a notification if I receive call or text messages from blocked numbers?
- How can I remove a number from the blocked list in the call+SMS filter app?
- How do I take a screenshot of the current window on my Lumia phone?
- Can I block phone calls from private numbers using the call+SMS filter app?
- What is the call+SMS filter application on my Lumia device?