试题详情
- 多项选择题Which statements are true regarding ISDN channels?()
A、Each B channel can transmit up to 64 kbps
B、The ISDN B channel carries voice or data
C、The ISDN D channel transmits control information.
D、The D channel transmission rate varies depending on the service used.
E、HDLC or PPP can be used to encapsulate D channel information.
- A,B,C
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