For PBXs,call transfer is ________.
A) a user service
B) an attendant service
C) a management service
Correct Answer:
Verified
Q6: Because of the curvature of the earth,microwave
Q7: Which of the following have an altitude
Q8: _ is/are widely used in Europe for
Q9: PSTN signaling in the United States uses
Q10: In TDM,time is first divided into brief
Q12: For PBXs,camp-on is _.
A)a user service
B)an attendant
Q13: SONET/SDH uses a _ topology.
A)point-to-point
B)hierarchy
C)mesh
D)ring
Q14: Cross-connect devices are found in _.
A)PBXs
B)equipment rooms
C)telecommunications
Q15: In data wiring,there need to be four
Q16: For PBXs,call forwarding is _.
A)a user service
B)an
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