The native MDM Client for Windows Phone devices allows end users to enroll devices without downloading the AirWatch Agent. End users enter their enrollment information into the MDM Client and the device enrolls into AirWatch.
The name of the native MDM client depends on the version of Windows Phone. The client is called Company Apps for Windows Phone 8.0, Workplace for Windows 8.1 devices, and Work Access for Windows 10 Mobile devices.
AirWatch also supports the legacy Company Hub enrollment flow.
For more information on enabling the Company Hub Enrollment flow, see the following AirWatch Knowledge Base article: https://support.air-watch.com/articles/115001664088.
Consider using the AirWatch Agent enrollment method as it offers simple step-by-step instructions for the end user.