1

What is a major drawback of using analog FXO trunks for inbound calls?

Answer:

The drawback is that no DNIS information is provided, so calls cannot be directly routed to their destination.

2

Which command must you include when configuring a CAMA type 4 (KP-NPD-NXX-XXXX-ST) trunk?

Answer:

You must use the ani mapping command to associate three-digit NPA numbers to a single-digit NPD.

3

You issue a show controller command on a digital trunk and see accumulated slip seconds in every interval. What could be the cause?

Answer:

Incorrect clocking configuration on the physical port can cause slips. For a PSTN connection, line clocking is typically used.

4

When you are trying to set up Q.931 backhaul on an ISDN PRI using CallManager MGCP, the isdn bind-l3 ccm-manager command is not recognized. What could cause this?

Answer:

The cause could be that you omitted the service mgcp keywords from the PRI group configuration on the controller for the physical interface.

   
5

What must you do prior to configuring a PRI group on an ISDN PRI circuit?

Answer:

You must configure an ISDN switch type globally on the Cisco voice gateway prior to configuring a PRI group on an ISDN PRI circuit.

6

Which signaling type is necessary if you want to receive ANI information on a T1 CAS trunk?

Answer:

E&M FGD is necessary if you want to receive ANI information on a T1 CAS trunk.

7

What are the two components of R2 signaling?

Answer:

Line signaling (supervisory control signals) and interregister signaling (call setup control) are the two components of R2 signaling.

8

If it is necessary to use the cas custom command to modify the signaling on an E1 R2 trunk, what is the recommended first step?

Answer:

Begin by configuring the country country use-defaults command under cas custom.

Part I: Voice Gateways and Gatekeepers

Gateways and Gatekeepers

Part II: Gateways

Media Gateway Control Protocol

H.323

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

Index



Cisco Voice Gateways and Gatekeepers
Cisco Voice Gateways and Gatekeepers
ISBN: 158705258X
EAN: 2147483647
Year: 2004
Pages: 218

Similar book on Amazon

Flylib.com © 2008-2017.
If you may any questions please contact us: flylib@qtcs.net