Digital Circuits

Review Questions

1

Which port type should you use to connect to a 2-wire analog service connecting to the PSTN for both inbound and outbound calling?

2

What types of signaling are required on a voice circuit?

3

What is the difference between CAS and CCS on an E1 circuit?

4

What is the difference between SF and ESF?

5

What two types of echo are possible on a voice circuit?

6

Which signaling type supports ANI on T1 CAS circuits?

7

Which line signaling method should you use on an E1 r2 satellite link?

8

What component of an ISDN message is used to carry information about the call?

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