Unfortunately, on most stock Android phones, simply blocking a number won’t prevent them from leaving a voicemail. The voicemail system treats blocked calls differently than a ringing phone call.

However, there are a few workarounds depending on your situation:

Using Carrier Apps:

  • Many carriers offer apps with built-in spam protection that can prevent blocked numbers from leaving voicemails. These apps include:
    • ActiveArmor (AT&T)
    • Smart Family Parent (Verizon)
    • Scam Shield (T-Mobile)

These apps often have features like “Call Blocking Modes” where you can choose to “Disconnect” the call instead of sending it to voicemail. Check your carrier’s app store for their specific app.

Using Third-Party Apps:

  • There are third-party call blocking apps that offer more advanced features, including preventing voicemails from blocked numbers. One option is “Call Control” which allows you to set how blocked calls are handled.

Using Google Voice:

  • If you use Google Voice as your primary number, you can mark a number as spam. This will send their voicemails to the spam folder instead of your inbox. Make sure to enable “Filter Spam” in the Google Voice settings.

Important Note:

  • These methods may not be available on all Android phones or with all carrier plans. It’s always best to check your phone’s settings or consult your carrier for specific instructions.

While there isn’t a perfect solution yet for stock Android, these methods can help you manage unwanted voicemails from blocked numbers.