A. If 'Initial IP-IP Direct Media' is enabled, SIP-SIP two party calls will use direct media.

B. It provides centralized management of enterprise-wide dial plans

C. It delivers a set of shared management services and a common console.

D. It provides SIP registration and authentication.

E. If Direct IP-IP Audio Connections, h. 323 two-part calls will shuffles to establish a direct media.