> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v23** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/reference/rpc/latest/CallFeedItem).

Represents a Call extension.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v23/common/extensions.proto)

| Fields ||
|---|---|
| ## `call_conversion_action` | `string` The conversion action to attribute a call conversion to. If not set a default conversion action is used. This field only has effect if call_tracking_enabled is set to true. Otherwise this field is ignored. |
| ## `call_conversion_reporting_state` | `CallConversionReportingState` Enum value that indicates whether this call extension uses its own call conversion setting (or just have call conversion disabled), or following the account level setting. |
| ## `call_conversion_tracking_disabled` | `bool` If true, disable call conversion tracking. call_conversion_action should not be set if this is true. Optional. |
| ## `call_tracking_enabled` | `bool` Indicates whether call tracking is enabled. By default, call tracking is not enabled. |
| ## `country_code` | `string` Uppercase two-letter country code of the advertiser's phone number. This string must not be empty. |
| ## `phone_number` | `string` The advertiser's phone number to append to the ad. This string must not be empty. |