This Communication Server 1000M full-featured IP telephony communication server for existing Meridian 1 customers looking to evolve to IP while leveraging their existing investments. The Communication Server 1000M is a highly scalable communications platform that can evolve and grow with business needs. It enables collaborative communications, providing foundation for a unified communications environment. It incorporates comprehensive resilience and security capabilities, ensuring protection of network, its traffic and users. Primarily a software-based solution configured with Avaya's Unified Communications Management tool suit. The Communication Server 1000M Call Server provides reliable call and connection management service. It controls system software and is capable of supporting up to 15,000 clients per server.