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What is the minimum number of TCP sessions needed to complete a H.323 call between two H.323 gateways using sl

What is the minimum number of TCP sessions needed to complete a H.323 call between two
H.323 gateways using slow start?

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A.
0

B.
1

C.
2

D.
3

E.
4

Explanation:
Fast start allows for H323 media connections to be started at the beginning of a
call. This is helpful for ringback scenarios, and also reduces the amount of time calls take to
establish media. H245 is still negotiated later, but the actual media can be done earlier through
H225 messages.

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