单选题You are troubleshooting a one-way call problem with a cisco 7920 wireless ip phone on a standalone wlan. What may cause this problem？（）A the minimum data rate is not set to 11 mbps.B an address resolution protocol has been disabledC publicly secure pac
题目
单选题
You are troubleshooting a one-way call problem with a cisco 7920 wireless ip phone on a standalone wlan. What may cause this problem？（）
A
the minimum data rate is not set to 11 mbps.
B
an address resolution protocol has been disabled
C
publicly secure packet forwarding is enabled
D
the access point is set to the least congested channel.
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参考答案和解析
正确答案：
D
解析：
暂无解析