What would be able to handle IP telephony and e-business applications concurrently？（）

A. quick access to online help
B. reduce set-up time for new devices
C. ease of call forwarding and paging
D. simple configuration of network settings

A. retrieval and processing of information for tagged terns across an enterprise
B. access to enterprise networks from different service areas
C. standards-based communications for multiple media types
D. extensive functionality for large enterprises primarily fitted with optical networking