All ISDN connections are based on _____ types of channels.
a. two
b. three
c. four
d. five
All ISDN connections are based on two types of channels.
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Asked 12/7/2011 8:27:26 PM
Updated 6/5/2022 7:16:01 PM
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Edited by
Masamune [6/5/2022 7:15:59 PM], Confirmed by
Masamune [6/5/2022 7:16:00 PM]
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