The SID of the [Account](https://www.twilio.com/docs/iam/api/account) that will create the resource.

The API version to use to start a new TwiML session. Can be: `2010-04-01` or `2008-08-01`. The default value is the account's default API version.

The URL we should call when the phone number assigned to this application receives a call.

The HTTP method we should use to call `voice_url`. Can be: `GET` or `POST`.

The URL that we should call when an error occurs retrieving or executing the TwiML requested by `url`.

The HTTP method we should use to call `voice_fallback_url`. Can be: `GET` or `POST`.

The URL we should call using the `status_callback_method` to send status information to your application.

The HTTP method we should use to call `status_callback`. Can be: `GET` or `POST`.

Whether we should look up the caller's caller-ID name from the CNAM database (additional charges apply). Can be: `true` or `false`.

The URL we should call when the phone number receives an incoming SMS message.

The HTTP method we should use to call `sms_url`. Can be: `GET` or `POST`.

The URL that we should call when an error occurs while retrieving or executing the TwiML from `sms_url`.

The HTTP method we should use to call `sms_fallback_url`. Can be: `GET` or `POST`.

The URL we should call using a POST method to send status information about SMS messages sent by the application.

The URL we should call using a POST method to send message status information to your application.

A descriptive string that you create to describe the new application. It can be up to 64 characters long.

Whether to allow other Twilio accounts to dial this applicaton using Dial verb. Can be: `true` or `false`.