Voice providers are used to send voice OTPs. There are two options for sending voice messages:

• Default—No Voice OTP gateway. However, Voice OTP settings are inherited from the parent virtual server if they are configured.

• Custom—Select this option to configure the virtual server to send voice messages via a service provider to which you have subscribed. You can verify the ability to send voice messages by entering the phone number of a device capable of receiving voice messages in the Sender's Phone Number field.

Prior to configuring STA, configure a custom voice provider. The voice provider that you configure applies to the organization and its sub-organizations.

You can also customize the voice OTP messages that the virtual server sends.

Configure STA to use a custom voice provider

To configure STA to use a custom voice provider:

1. On the STA Token Management console, select Comms > Communications > Voice OTP Settings.

   

2. Select Custom.

   

3. Provide the details about the voice provider that you are using:

   • Voice Provider—Twilio.

   • Account Id—Provided by Twilio.

   • Authentication Token—Provided by Twilio.

   • Sender's Phone Numbers—Provided by Twilio. The numbers from which you will receive calls.

     Phone numbers must contain digits only and must begin with a country code.

   • Delay between messages (ms)—The delay between calls in milliseconds.

     The only voice provider supported is Twilio. Refer to Twilio for details.

4. Select Apply.

Recommended settings

The recommended settings are: 

• SMS template in Challenge Response mode

• Numeric PIN's only (complex PINS are not supported)

Related information

Other tasks related to the Voice OTP feature include:

• Generate and deliver OTPs

• Customize voice OTP messages