单选题What gateway port type can analog phones be connected to for use on a VoIP network？（）AFXSBFSOCEMDauxiliary portE802.3af ethernetports
单选题
What gateway port type can analog phones be connected to for use on a VoIP network？（）
A
FXS
B
FSO
C
E&M
D
auxiliary port
E
802.3af ethernetports
参考解析
解析：
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