Which of the following statements regarding ISDN are correct?（）A、Each ISDN B channel has transmission speeds of up to 64 kbps.B、The ISDN B channel can carry video, voice or data.C、The ISDN B channel transmission rate varies depending on the service used.D、The ISDN D channel transmits control information.E、The ISDN B channels can be configured with different subnets and encapsulation types when dialer profiles are configured.
Which of the following statements regarding ISDN are correct?（）
- A、Each ISDN B channel has transmission speeds of up to 64 kbps.
- B、The ISDN B channel can carry video, voice or data.
- C、The ISDN B channel transmission rate varies depending on the service used.
- D、The ISDN D channel transmits control information.
- E、The ISDN B channels can be configured with different subnets and encapsulation types when dialer profiles are configured.
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