Business Communications Manager 50 is an all-in-one, affordable
platform for converged voice and data communications for small to medium
business with 3 to 20 users, yet scalable to serve more than 40.
Business Communications Manager 400 is an all-in-one platform
providing business communication needs to small and mid-sized businesses
or branch offices with 30 - 200 digital users or 90 IP telephone users.
Communication Server 1000 is a server-based, full-featured
IP PBX, providing the benefits of a converged network plus advanced
applications and over 750 world-class telephony features.