Case Study: Deploying Gatekeepers to Assist in Migration to VoIP

Table of contents:

Review Questions


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


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


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


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


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


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


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


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

Part I: Voice Gateways and Gatekeepers

Gateways and Gatekeepers

Part II: Gateways

Media Gateway Control Protocol


Session Initiation Protocol

Circuit Options

Connecting to the PSTN

Connecting to PBXs

Connecting to an IP WAN

Dial Plans

Digit Manipulation

Influencing Path Selection

Configuring Class of Restrictions

SRST and MGCP Gateway Fallback

DSP Resources

Using Tcl Scripts and VoiceXML

Part III: Gatekeepers

Deploying Gatekeepers

Gatekeeper Configuration

Part IV: IP-to-IP Gateways

Cisco Multiservice IP-to-IP Gateway

Appendix A. Answers to Chapter-Ending Review Questions


Cisco Voice Gateways and Gatekeepers
Cisco Voice Gateways and Gatekeepers
ISBN: 158705258X
EAN: 2147483647
Year: 2004
Pages: 218 © 2008-2020.
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