Block incoming calls
You can block incoming calls from a specific incoming phone number or a country. To do that you can use the Branch component, which lets you compare values. To block calls, compare either the From number or the two-letter ISO-3166-1 alpha-2 country code for the country.
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Drag and drop the Branch component onto the canvas.
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In the Configuration tab
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For Variable to compare, enter the value you’ll receive on the call.
- To compare the caller ID, enter
{{Start.call.from}}
- To compare the country code, enter
{{Start.call.from_iso2}}
- To compare the caller ID, enter
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For Operation, select “Is equal to.”
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For the value to compare:
- For caller ID, enter the caller ID you want to block — for example, 1-220-200-0000.
- For country code, enter the code for the country you want to block — for example, NG for Nigeria or PH for the Philippines.
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Click Validate to save the settings.
Now the branch node will have two output states:
- No Match: When the values don’t match
- CONDITION1: When the condition matches
Condition names are editable. We recommend giving conditions logical names to make them easier to track. -
Connect the Incoming Call state of the Start node to the Branch node.
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Connect the No Match state of the Branch node to a Call Forward node.
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You can either leave the CONDITION1 node unattached or attach it to a Hangup node. Calls will be blocked in either case.
Block phone number setting:

Block country setting:
