【单选题】Integrating All Communications 1.Have you ever felt frustrated when you have to contact your friends, but cannot reach them even you've tried to call to their mobile phones, pager and telephone? You m...
A.
Functions of Lucent's SoftSwitch
B.
Single number concept-basis for the integrated technologies
C.
Integrated telecommunication network
D.
Single number concept
E.
Higher service quality
F.
Inconvenience of disintegrated communication means Paragraph 1______
【简答题】1.Have you ever forgotten___in the
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