单选题In a VoIP network, which type of interface would an analog fax machine connect to?()A Type 1B Type 2C FXSD FXOE EM
单选题
In a VoIP network, which type of interface would an analog fax machine connect to?()
A
Type 1
B
Type 2
C
FXS
D
FXO
E
E&M
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