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@@ -28,6 +28,8 @@ Important: The USERNAME (your phone number) must include the country calling cod
 * Register a number (with SMS verification)
 
         signal-cli -u USERNAME register
+        
+  You can register Signal using a land line number. In this case you can skip SMS verification process and jump directly to the voice call verification by adding the --voice switch at the end of above register command.
 
 * Verify the number using the code received via SMS or voice