Step 1: Access the Grandstream PBX Web Interface
Log In: Open a web browser and enter the IP address of your Grandstream PBX system. Log in with your administrator credentials.
Step 2: Configure the Blacklist
Navigate to Settings:
Go to PBX → Call Features → Blacklist.
Add a Number to the Blacklist:
Click on Add to create a new blacklist entry.
Blacklist Number: Enter the phone number you want to block.
Note: You can add a description or note for reference.
Click Save to add the number to the blacklist.
Step 3: Create Inbound Rule to Use the Blacklist
Navigate to Inbound Routes:
Go to PBX → Call Control → Inbound Routes.
Create a New Inbound Route or Modify an Existing One:
Click on Add if you want to create a new route or click Edit next to an existing route.
Configure the Inbound Route:
Route Name: Give your route a name for identification.
DID Pattern: Set the DID pattern if applicable.
Caller ID Pattern: You can leave this blank unless you want to set specific caller ID patterns.
Blacklist: Set this to Yes to enable the blacklist feature for this route.
Default Destination: Choose where you want the call to be redirected (e.g., hang up, send to voicemail, etc.).
Save the Inbound Route:
Click Save to apply the changes.
Step 4: Apply Changes
Apply Configuration Changes:
Click on Apply Changes at the top of the web interface to activate your new settings.
Verification
Test the Configuration:
Call the PBX from the number you added to the blacklist to ensure it’s blocked as expected.
Additional Tips
Updating the Blacklist:
If you need to block more numbers, simply repeat Step 2 to add more numbers to the blacklist.
Whitelist Important Numbers:
If you have a whitelist feature, make sure important numbers are added to avoid accidental blocking.
By following these steps, you can successfully block unwanted phone numbers on your Grandstream PBX system. If you encounter any issues, consult the Grandstream user manual or contact their support for further assistance.
