1

How will caller ID work on an FXO to FXS connection between a PBX and a Cisco voice gateway?

Answer:

Caller ID will work only in one direction, from FXS to FXO.

2

Which E&M trunk type is most commonly in use?

Answer:

Type I is used most often in North America, and Type V is used most often throughout the rest of the world.

3

A four-wire E&M Type V trunk uses how many physical wires?

Answer:

A four-wire E&M Type V trunk uses six wires.

4

Which command confirms the status of clocking for the TDM bus of a voice gateway?

Answer:

The show network-clocks command lists available clock sources by priority.

5

How can you control the master/slave Layer 2 function of an ISDN PRI trunk?

Answer:

You can control the master/slave Layer 2 function of an ISDN PRI trunk by using the isdn protocol-emulate user | network command.

6

What type of signaling is configured on DS0s that are used for T-CCS?

Answer:

External signaling is configured using the type ext-sig parameter of the ds0-group command.

   
7

How do you configure the D-channel for an MGCP-controlled ISDN PRI trunk?

Answer:

Configure Layer 3 backhaul to CallManager using the isdn bind-l3 ccm-manager command.

8

When you are using an MGCP-controlled PRI trunk, how can you verify the status of the ISDN Q.931 backhaul?

Answer:

The show ccm-manager command shows the status of the backhaul channel.

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