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Question :-

Company CADORNA's INC. is planning a deployment of Cisco IP Telephony using the Centralized Call Processing model. The company has 1 HQ and 25 branches in a hub and spoke configuration. Additionally, there will be an interconnection with multiple Telephony Service Providers using H323. Which Call Admission Control methods should be used in this network?
Use Locations-based CAC with the Telephony Service Providers and GK-based CAC with the branches
Use Locations-based CAC with the Telephony Service Providers and with the branches
Use Locations-based CAC with the branches and GK-based CAC with the Telephony Service Providers
Use GK-based CAC with the Telephony Service Providers and with the branches

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