Which license enables the Avaya IP Office Mobile Worker feature?

The "Power User" license (Option A) enables the Mobile Worker feature, allowing users to use softphones (e.g., Equinox) and mobility features remotely. Option B (Teleworker) is for remote deskphones, Option C (Office Worker) lacks full mobility, and Option D (Mobile User) is not a standard license type.References: Avaya IP Office Licensing Guide.