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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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