A customer wants to prevent additional calls from being established, and to preserve the quality active calls when the capacity limit on the WAN link is reached. The branch inter-office communication use rate is one trunk for every 20 users over the customer's star topology WAN. 600k of the WAN bandwidth is dedicated to voice.
Assuming G.729 (30k bandwidth per call) is used, which Call Admission Control (CAC) limit will meet the customer s requirement?
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