Objective

This guide walks you through how to disable voice functionality (incoming & outgoing calls ) on your Twilio account via Twilio Console.

Product

Programmable Voice

Environment

legacy Twilio Console

User Account Permission/Role(s) Required 

Administrator Role: Full access to invite and revoke access for new users, see billing history and make changes, and update project settings.

Procedure

Disable Inbound Voice Calls 

1. Log in to Twilio Console:
   • Goto the Twilio Console and log in with your credentials.
2. Navigate to Phone Numbers:
   • In the left-hand navigation menu, click on Phone Numbers.
   • Select Manage and then Active Numbers.
3. Select the Phone Number:
   • Click on the phone number for which you want to disable incoming calls.
   • Scroll down to the Voice Configuration.
4. Remove the Webhook URL:
   • In the A Call Comes In field, delete the existing URL.
   • Ensure that the field is empty.
5. Save Changes:
   • Scroll down and click the Save Configuration button to apply the changes.
6. Once these changes are implemented, no call SID will be generated in the Twilio account, and the account will not incur any charges.

Disable Outbound Voice Calls 

1. Log in to Twilio Console:
   • Goto the Twilio Console and log in with your credentials
2. Navigate to Voice Settings:
   • In the left-hand navigation menu, click on Voice
   • Select Settings and then Geo permissions
3. Access Geo Permissions:
   • On the Geo Permissions page, you will find two tabs: Low Risk and High Risk.
   • Each tab contains a list of countries that you can enable or disable for outbound calls.
4. Disable Outbound Calls:
   • To disable outbound calls, uncheck all the countries listed under both the Low Risk and High Risk tabs.
   • Disable all countries by using the "deselect continent" checkbox if available.
5. Save Changes:
   • After making the necessary changes, click the Save button to apply the changes.