DRAG DROP
Assume a SIP voice network. Drag each characteristic to the type of SIP call setup the
characteristics best describes.
Answer: 
Explanation:
Direct call setup:+ Nonscalable+ UA must keep data on large number of destinations+ Relies on
cached information to resolve addresses
Redirect Server Call Setup:+ Server reports back to a UA with destination coordinates
Proxy Server Call Setup:+ Most dynamic address resolution capability+ All setup messages to
through server+ UA incapable of establishing its own sessions
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