Definity Systems cannot support the network needs of businesses.
This is blatantly wrong: Avaya Phone Systems designed Definity Systems specifically to meet the needs of businesses of all sizes. Smaller business will benefit from the Definity Server CSI, capable of supporting between 50 and 250 users on the network. For mid- sized and large business, there is the Definity Server SI, which can accommodate up to 500 users on the network.

Once you buy Definity Systems, you