Case Study: Deploying Gatekeepers to Assist in Migration to VoIP

Review Questions

1

What are two ways to verify that gateways have successfully registered with a gatekeeper?

2

Why is it necessary to configure technology prefixes when implementing gatekeepers on a voice network?

3

What do you need to do to the gatekeeper configuration to provide dynamic prefix registration support?

4

How much bandwidth does the gatekeeper count for each call using a G.729 codec? For a G.711 codec?

5

How can you provide redundancy on a CallManager H.225 gatekeeper-controlled trunk?

6

How is state information shared between gatekeepers in a gatekeeper cluster?

7

What three commands can provide detailed information about the status of a gatekeeper cluster?

8

Which undocumented trace command can you use to show the decision tree steps that the gatekeeper takes as it processes an ARQ message?

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