Possible types of property from where the call was made.

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

| Enums ||
|---|---|
| ## `HIGH_END_MOBILE_SEARCH` | The phone call was a mobile click-to-call. |
| ## `MANUALLY_DIALED` | The phone call was manually dialed. |
| ## `UNKNOWN` | Used for return value only. Represents value unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |