Built for enterprise deployments secure your conversations with the Poly Rove B4 base station DECT ™ end-to-end encryption.Meet the Poly Rove B4 base station. It's compatible with all Poly Rove products and easily scales with your growth. So, no more stressing about outgrowing your communication solution.Communicate with confidence using the Poly Rove B4 base station. DECT ™ tech ensures end-to-end encryption for seamless, private conversations from handset to base station.