试题详情
- 多项选择题What are two reasons to implement H·323 gatekeepers？（）
A、 to eliminate the need for VoIP gateways
B、 to scale a VoIP installation with multiple gateways
C、 to provide call admission control and limit the number of simultaneous calls on the network
D、 to meet the requirement to control H·323 gateways on a LAN
E、 to accept call requests and reduce the load on the gateway
- B,C
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