If your phone sometimes doesn’t ring when people call, there could be several reasons behind this issue. One possible explanation is that your phone is set to silent or do not disturb mode, which can prevent it from ringing. Check your phone’s settings to ensure that it’s not in one of these modes. Another reason could be that the volume is turned down or the ringer is set to “none.” Make sure to check your phone’s volume settings and ensure that the ringer is set to a audible sound.
Additionally, issues with your phone’s network connection or signal strength could also cause calls to go straight to voicemail without ringing. If you’re in an area with poor network coverage, this might be the culprit. It’s also possible that there’s an issue with your phone’s settings or a software glitch that’s causing the problem. Try restarting your phone or checking for any software updates to see if that resolves the issue. If the problem persists, you may want to contact your phone’s manufacturer or your network provider for further assistance.