Set up page for voice calls

[sw00d]

If you want to effectively block all voice calls, you can do the following:

Go to the Twilio Console's Active Numbers page (https://www.twilio.com/console/phone-numbers/incoming).
Click on the phone number you want to modify.
Under "Voice & Fax" section, find the "A CALL COMES IN" option.
Set this to 'Webhook' and provide a URL to a TwiML bin that you've set up to reject all calls. For example, this TwiML would reject all calls:
xml

<?xml version="1.0" encoding="UTF-8"?>
<Response>
    <Reject reason="busy"/>
</Response>