Enum describing the type of call-to-action phrases in a business message.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/enums/business_message_call_to_action_type.proto)

| Enums ||
|---|---|
| ## `APPLY_NOW` | Apply now. |
| ## `BOOK_NOW` | Book now. |
| ## `CONTACT_US` | Contact us. |
| ## `GET_INFO` | Get info. |
| ## `GET_OFFER` | Get offer. |
| ## `GET_QUOTE` | Get quote. |
| ## `GET_STARTED` | Get started. |
| ## `LEARN_MORE` | Learn more. |
| ## `UNKNOWN` | Used for return value only. Represents value unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |