Machine detection is helpful when you have voicemails set on both your forwarded number and CallHippo number. If you want your calls to go to CallHippo's voicemail and not to your personal voicemail, you can turn on Machine detection.
When the call goes to personal voicemail, the status of the call would be Completed whereas when the call goes to CallHippo's voicemail, the status of the call would be Voicemail. This helps you identify the number of calls that have gone unattended.
In order to use this feature go to the User section → Forward-To-Device section → enable the toggle of Machine Detection.
Hope this was helpful!
For further queries, please contact us at support@callhippo.com