---title: Configuring Multi-factor Communication Options---
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- Current: Configuring Multi-factor Communication Options
EmpowerID supports several one-time password delivery types, also known as Multi-Factor Communication options or Communication Types, from which users can choose for receiving verification codes when performing multi-factor authentication. Communication options include email, SMS and voice call. When users enroll for—and subsequently use—a multi-factor authentication method that requires verification codes, they select their preferred multi-factor communication option for receiving the code. Initially, users select one option, but can later add any other supported options to their profile pages. As an administrator you can configure which communication types are available by disabling those your organization chooses to not support.
To configure multi-factor communication options
From the Navigation Sidebar of the EmpowerID Web interface, navigate to the Communication Types page by expanding Admin > SSO Connections and clicking Communication Types.You should see each type enabled by default.
Click the Edit button for any Communication Type you want to disable. Edit buttons have the Pencil icon. 
In the Enable or Disable pane that appears, deselect Enabled and then click Save. 
- From the Navigation Sidebar, navigate to the Workflows page by expanding IT Shop and clicking Workflows.
- From the Workflows page, recycle the EmpowerID App Pools by clicking Recycle EmpowerID App Pools.
Silent Errors with Twilio
There are silent errors in the event log in three scenarios:
- *The phone number field requires a country code and errors silently if one is not provided.
- If the phone number is invalid the page fails silently.
- If a person does not have a phone number, the page shows successful when it is not.
Concepts:
Administrative Procedures:
- Setting the MFA Points Required by Password Manager Policies
- Assigning MFA Types to Password Manager Policies
- Setting the MFA Points Required by Applications
- Assigning Adaptive Authentication Rules to Password Manager Policies
- Assigning MFA Types to Applications
- Editing MFA Type Point Values
- Setting the MFA Points Granted by SSO Connections
- Integrating DUO Two-Factor Authentication
- Integrating Yubico OTP
- Registering and Issuing Vasco Hardware OATH Tokens
- Customizing the MFA Retry Limit