Which purpose of the Cisco SIP Proxy service in Cisco Unified CM IM&P is true?
A . Collect, aggregate, and distribute user capabilities and attributes using the standards-based SIP and SIMPLE interface.
B . Keep IM&P data synchronized with Cisco United Communications Manager data
C . Provide the SIP registrar and proxy functionality.
D . Enable browser-based clients to connect to IM&
Answer: C