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单选题
Which statement describes the distributed call control model in VoIP networks？（）
A
The gateway voice-capable device is configured to support call control directly performing call setup， call maintenance， and call teardown
B
The gateway voice-capable device has a local call routing table configured through a routing protocol.
C
The gateway voice-capable device relies on a call agent to support call control.
D
The gateway voice-capable device relies on a gatekeeper to support call setup， call maintenance， and call teardown.
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更多 “单选题Which statement describes the distributed call control model in VoIP networks？（）A The gateway voice-capable device is configured to support call control directly performing call setup， call maintenance， and call teardownB The gateway voice-capable device has a local call routing table configured through a routing protocol.C The gateway voice-capable device relies on a call agent to support call control.D The gateway voice-capable device relies on a gatekeeper to support call setup， call maintenance， and call teardown.” 相关考题
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Which statement describes the distributed call control model in VoIP networks？（）A、The gateway voice-capable device is configured to support call control directly performing call setup， call maintenance， and call teardownB、The gateway voice-capable device has a local call routing table configured through a routing protocol.C、The gateway voice-capable device relies on a call agent to support call control.D、The gateway voice-capable device relies on a gatekeeper to support call setup， call maintenance， and call teardown.
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单选题Which statement is true about a distributed call control environment and the processing of dialed digits from an IP phone？（）A
The router that is directly connected to the IP phone will look up the called number in its call routing table.B
The router that is directly connected to the IP phone will inform its call agent when a service request is detected.C
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