CCNA Voice Certification

8/6/2019 CCNA Voice Certification

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14362_04_2008_c1

Agenda

Who are these guys?

Explain the CCNA-Voice certification

Provide practice exam task that will assist in preparingfor the IIUC Exam

Will provide:

Suggestions

Resources

Some sample questions Q and A


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What We Will Cover

Impossible to cover all topics for IIUC in two-hour session

Session is about How to Prepare for the IIUC Exam, notabout Covering all IIUC knowledge in Two Hours

We will cover practice exam tasks in a few of the keytopic areas:

Understanding Traditional Telephony and VoIP

Implementing Cisco Smart Business Communications System

Implementing Cisco Unified Communications Manager Express

Implementing Cisco Unity Express


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Disclaimer

We may not be able to address your specific exam taskquestion

We will be available after the session to direct youto resources to assist with specific questions or toprovide clarification

This Session Will Strictly Adhere to Ciscos Rulesof Confidentiality


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CCNA-Voice

The new Cisco associate level for voice certification

validates the ability of the individual to install andconfigure Cisco Unified Communications ManagerExpress and Cisco Unity Express to support smallvoice over IP (VoIP) networks with connectivity to thePSTN.


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Exam Option (1)

Interconnecting Cisco Networking Devices (640-816 ICND2)More Complex Networks LANs and VLANs

IP Routing Access Lists

Implementing Internet Unified Communications (640-406 IIUC)Traditional Telephony and VoIP Cisco Smart Business Communications System

Cisco Unified Communications Manager Express Cisco Unity Express

V

Interconnecting Cisco Networking Devices (640-822 ICND1)

Simple Networks Connected NetworksCisco IOS Devices Network Management

ENT


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Exam Option (2)

Implementing Internet Unified Communications (640-406 IIUC)Traditional Telephony and VoIP Cisco Smart Business Communications System

Cisco Unified Communications Manager Express Cisco Unity Express

V

Interconnecting Cisco Networking Devices (640-816 ICND2)

Cisco Certified Network Associate (640-802 CCNA)

Simple Networks Connected Networks Cisco IOS DevicesNetwork Management More Complex Networks LANs and VLANsIP Routing Access Lists


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Topics Covered in IIUC

Describe the components of the Cisco Unified CommunicationsArchitecture

Describe the function of the infrastructure in a UC environment

Describe the function of endpoints in a UC environment

Describe the function of the call processing agent in a UC environment

Describe the function of messaging in a UC environment

Describe the function of auto attendants and IVRs in a UC environment

Describe the function of contact center in a UC environment

Describe the applications available in the UC environment, including mobility, Presence,and Telepresence

Describe how the Unified Communications components work together to create the CiscoUnified Communications Architecture

Describe PSTN components and technologies

Describe the services provided by the PSTN

Describe time division and statistical multiplexing

Describe supervisory, informational, and address signalling

Describe numbering plans

Describe analog circuits

Describe digital voice circuits

Describe PBX, trunk lines, key-systems, and tie lines


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Topics Covered in IIUC (Cont.)

Describe VoIP components and technologies

Describe the process of voice packetization

Describe RTP and RTCP

Describe the function of and differences between codecs

Describe H.323, MGCP, SIP, and SCCP signaling protocols

Describe and configure gateways, voice ports, and dial peersto connect to the PSTN and service provider networks

Describe the function and application of a dial plan

Describe the function and application of voice gateways

Describe the function and application of voice ports in a gateway

Describe the function and operation of call-legs

Describe and configure voice dial peers

Describe the differences between PSTN and Internet TelephonyService Provider circuits


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Describe and configure a Cisco network to support VoIP

Describe the purpose of VLANs in a VoIP environmentDescribe the environmental considerations to support VoIP

Configure switched infrastructure to support voice and data VLANs

Describe the purpose and operation of PoE

Identify the factors that impact voice quality

Describe how QoS addresses voice quality issues

Identify where QoS is deployed in the UC infrastructure

Implement UC 500 using Cisco Configuration Assistant

Describe the function and operation of Cisco Configuration Assistant

Configure UC 500 device parameters

Configure UC 500 network parameters

Configure UC 500 dial plan and voicemail parameters

Configure UC 500 SIP trunk parameters

Configure UC 500 voice system features

Configure UC 500 user parameters


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Describe basic troubleshooting methods for Cisco UnifiedCommunications Manager Express

Explain basic troubleshooting methods for CiscoUnity Express

Explain basic maintenance and troubleshooting methods for UC 500

Perform Basic Maintenance and Operations Tasks toSupport the VoIP Solution


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Exam Taking Tips

Eliminate nonsense options

Look for the best answer

Look for subtleties

Make an intelligent guess

Use a time budget; do not spend too much timeon one question

Practical Tips on Taking Multiple Choice Exams


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Exam Format

Question formats

Declarative

Procedural

Drag-and-drop

Complex procedural

Avoided question formats

Memorization of command syntax or interface/menus

Trick questions

Version dependencies (platform dependencies are not avoided,i.e., configure Cisco IOS vs. Cisco Catalyst IOS)

Test Practical Implementation Skills


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Exam Format: Declarative

A. Layer 2

B. Layer 3

C. Layer 4

D. Layer 6

A Declarative Exam Task Tests Simple Recall ofPertinent Facts

Which OSI model layer provides the connection-lessprotocol used for VoIP?


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Exam Format: Declarative

A. Layer 2

B. Layer 3

C. Layer 4

D. Layer 6

A Declarative Exam Task Tests Simple Recall ofPertinent Facts

Which OSI model layer provides the connection-lessprotocol used for VoIP?


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Exam Format: ProceduralA Procedural Exam Task Tests the Ability toApply Knowledge to Solve a Given Issue

A. Cisco Unified Contact Center Express

B. Cisco Unified Contact Center Enterprise

C. Cisco Unified Contact Center Hosted

D. Cisco Unified IP Contact Center

Refer to the figure. Which would you recommend for acustomer interaction management solution that willprovide for 10 to 300 agents?


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Exam FormatProcedural Figure


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Exam Format: ProceduralA Procedural Exam Task Tests the Ability toApply Knowledge to Solve a Given Issue

A. Cisco Unified Contact Center Express

B. Cisco Unified Contact Center Enterprise

C. Cisco Unified Contact Center Hosted

D. Cisco Unified IP Contact Center

Refer to the figure. Which would you recommend for acustomer interaction management solution that willprovide for 10 to 300 agents?


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Exam Format: Drag and Drop

Click and drag the characteristic on the left to theVoice Protocol to which it applies.

Point-to-Point

Text-Based

Peer-to-Peer

Packet-Based

H.323

SIP

A Drag-and-Drop Exam Task Tests the Abilityto Relate Concepts


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Exam Format

A complex procedural exam task tests the ability to apply

multiple knowledge points to solve an issue.

Complex Procedural


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Section 1:UnderstandingTraditional andVoIP Telephony


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Practice Task

A. FXS

B. T1/E1 CAS

C. FXO

D. T1/E1 PRI

Analog and Digital Circuits

Which port type is typically used to connect to an analog

circuit from the PSTN?

This task assesses your knowledge of connectivity to the PSTN from avoice gateway. What do we know about voice ports on a gateway?T1/E1 ports are digital ports, so they wont work with an analogconnection. An FXO port terminates an FXS connection from the PSTN.

An FXS port allows you to connect a traditional analog device to is andreceive dial-tone. There is a an IOS command that allows an FXS portto receive DID information from the PSTN. This is a special case andisnt considered a typical usage.

The correct answer to this task C.

Reference:http://www.cisco.com/en/US/products/hw/routers/ps274/products_tech_note09186a00800b53c7.shtml

http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a0080094fac.shtml

http://www.cisco.com/en/US/docs/ios/12_3/featlist/dial_vcg.html#wp999526 - Part 3 ISDN and Signaling Configuration


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Practice Task

Which channel(s) are used for signaling on an E1 PRI?

A. Time slot 1

B. Time slot 17

C. Time slots 1 and 17

D. Time slot 32

E. Time slots 17 and 32



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Practice Task

Which channel(s) are used for signaling on an E1 PRI?

A. Time slot 1

B. Time slot 17

C. Time slots 1 and 17

D. Time slot 32

E. Time slots 17 and 32


In the E1 frame format, 32 timeslots make up a frame. A multiframeconsists of 16 E1 frames. A single frame is depicted in the figure.

The timeslots are numbered 1 though 32. Multiframe timeslots areconfigured as follows:

Timeslot 1 carries only framing information.

Timeslot 17 carries signaling information

Timeslots 216 and 1832 carry voice

In E1 framing and signaling, 30 of the 32 available channels, or timeslots, are used for voice or data. Framing information uses timeslot 1(channel 0), whereas timeslot 17 (channel 16) is used for signaling by allof the other time slots.


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Practice Task

Drag the characteristic on the left to the type of circuit on

the right; some may be used more than once.

T1 CAS

Up to 24 channels for voice

16 frames are grouped together to makea multiframe

E1 PRI

One channel for signaling

ESF groups together 24 frames

One sample per channel per frame



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Practice Task

Drag the characteristic on the left to the type of circuit on

the right; some may be used more than once.

T1 CAS


16 frames are grouped together to makea multiframe

E1 PRI

One channel for signaling

ESF groups together 24 frames




This is a typical drag and drop task. Your foundational knowledge of T1 Channel AssociatedSignaling and E1 Primary Rate Interfaces are being assessed.

What do we know about T1CAS?

There are up to 24 channels for voice. Each DS0 is 64 kbps.

There is one sample per channel per frame.

1 byte per sample.

Super Frames (SF) are groups of 12 frames and Extended Super Frame is groups of 24 frames.

What do we know about E1 PRI?


One channel for signaling and one channel for framing

Each channel is a DS0 and each DS0 is 64 kb/s

8000 samples per second in voice DS0s

1 byte per sample and 1 sample per channel per frame

16 frames are grouped together to make a multiframe

Allows for multiple services through one connection

Well-adapted for voice

64-kb/s B channels

Q.931 protocol used on the D channel

Supports proprietary signaling on the D channel

Reference:http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800e2560.shtml and http://www.cisco.com/en/US/docs/ios/12_3/featlist/dial_vcg.html#wp999526 -Part 3 ISDN and Signaling Configuration


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Practice Task

A. 18 bytes

B. 20 bytes

C. 22 bytes

D. 40 bytes

E. 46 bytes

F. 58 bytes

DSPs and CODECs

What is the combined header overhead for a voice

packet with RTP/UDP/IP and Ethernet headers withoutusing cRTP?

This is a calculation task. It works like this:

40 bytes for the RTP/UDP/IP header without compression or

2 bytes for the RTP/UDP/IP header with compression or

4 bytes for the RTP/UDP/IP header with compression and checksums

Data Link Headers:

Ethernet: 18 bytes

MLP: 6 bytes

FRF.12 (Frame Relay): 6 bytes

So the answer is 40 bytes for RTP/UDP/IP + 18 bytes for Ethernet = 58bytes. Option F is the correct answer.


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Practice Task

A. Functions exclusively in client-server voice networks

B. May function as an analog-to-digital or digital-to-analog device

C. A different gateway type is required for client-server and peer-to-peer networks

D. Translates between different networks

E. Requires DSP resources to support translation

Gateways

Which two identify the function and components of a

gateway? (Choose two.)

Here is a gateway task. What do we know about gateways?

They translate between dissimilar networks

They may function as an analog station or trunk gateway, a digitalgateway or the combination of analog to digital gateway.

Gateways function the same way in client server and peer-to-peernetworks and separate gateways arent required for client-server orpeer-to-peer networks.

The correct answers to this task are B and D.

Reference:http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/srnd/design/guide/gatewy.html


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Practice Task

A. Functions exclusively in client-server voice networks

B. May function as an analog-to-digital or digital-to-analog device

C. A different gateway type is required for client-server and peer-to-peer networks

D. Translates between different networks

E. Requires DSP resources to support translation

Gateways

Which two identify the function and components of a

gateway? (Choose two.)

Here is a gateway task. What do we know about gateways?

They translate between dissimilar networks

They may function as an analog station or trunk gateway, a digitalgateway or the combination of analog to digital gateway.

Gateways function the same way in client server and peer-to-peernetworks and separate gateways arent required for client-server orpeer-to-peer networks.

The correct answers to this task are B and D.

Reference:http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/srnd/design/guide/gatewy.html


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The Cisco Unified Communications500 Series for Small Business

The key component of the Cisco SmartBusiness Communications System is theCisco Unified Communications 500 Seriesfor Small Business

The Cisco Unified Communications 500 Seriesfor Small Business includes:

Call processing based on Cisco UnifiedCommunications Manager Express 4.2

Voice mail and auto-attendant provided usingCisco Unity Express 2.3.4

Support for full portfolio of Cisco Unified IP phones

LAN switching with built-in or expansion switches

Firewall and VPN capabilities

Cisco data routingH.323 and SIP protocol support

Cisco Configuration Assistant

Cisco Smart Assist default configuration preconfiguredfor voice, data, and mobility

Wireless LAN support using built-in or externalAP (optional)

8- or 16-User Desktop Models

32- or 48-User Models


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Cisco Unified Communications500 Series for Small Business

MOH

10.5 Wide, 11.05 Deep, 1.5 RU Tall (2.625)

Wi-Fi(Optional)

Console PoE (8) WANPort

ExpansionPort

2 x BRI FXS (4)

VIC Slot

(Field Expansion)

FXO (4)

ModelUC520-8U-2BRI-K9

ModelUC520-8U-4FXO-K9

8- or 16-User Models


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Telephony Features

PBX mode or keyswitch mode

System featuresLanguage

Date format

System message

System speed dials

Network features

Voice VLAN

DHCP scope settings

IP addressing

SIP trunk settings

Dial plan settings

Extension length

Outgoing call handling

Incoming call handling

Voice-mail features

Voice-mail pilot numbers

Auto-attendant

Voice features

MOH

Paging

Intercom

Hunt Group

Call Pickup

Caller ID Blocking

Call blocking

Call Park

Conferencing

UsersName

Association with a device

PhoneMAC address

Extension number(s)

Permissions

Call Forward settings


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Cisco Configuration Assistant

Is a GUI tool used to deploy, configure,maintain, and monitor the followingaspects of Cisco Smart BusinessCommunications Systems:

Switching

Telephony

Wireless

Security

Network services

Internet connectivity

Is a Windows-based application

Requires IP connectivity to function

Provides an interactive topology view

Drag and drop upgrades of software,firmware, and language files

Provides a front panel view


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Demonstration of Configuring UC-520

1. Verify autoconfiguration of two IP phones2. Configure an Internet connection: IP address 10.1.10.100/24

Default Gateway 10.1.10.1

3. Verify the Data and Voice VLAN settings: Data VLAN 10, Voice VLAN 100

4. Configure Users and Passwords: Username: admin, Password: cisco

5. Configure an NTP server: IP address: 172.16.1.1

6. Configure a System Message: Your current options

7. Configure dial plan to support E911

8. Configure Date and Time Format: Date YY/MM/DD, Time: 24-hour format

We Are Going to Verify Some of the Default Settings andAdd Some Basic Configuration to a UC-520


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Section 3:Implementing theCisco UnifiedCommunicationsManager Express


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Practice Task

A. The voice VLAN when combined with a data VLAN separate the voice anddata traffic

B. A voice VLAN allows RFC 1918 to be used for voice network addressingpreserving the registered IP address space

C. It simplifies QoS configurationD. Requires separate network connections for the data and voice networks

E. Requires separate switches to support the data and voice VLANs

F. A voice VLAN reduces spanning tree overhead

VLAN Configuration

You have a customer that is interested in deploying a Unified

Communications network to replace their existing PBX. They havea LAN that is using a registered IP address range that do not haveenough free IP addresses to support both a data and voice network.You want to make a point of discussing voice VLANs with yourcustomer, what characteristics do you need to emphasize?(Choose three.)

This is a scenario task that assess your knowledge of VLAN concepts. Look at thestem. You have a customer that has an IP network using registered addresses anddoesnt have enough free IP addresses to support both a voice and data network. What

do we know about a voice VLAN? Its deployed to separate the voice and data traffic. Itreduces the need for readdressing of the network. It makes QoS easier to deploy andonly requires a single wire to each workstation to support the IP phone and theattached PC. Lets look at the options.

Option A is correct. A voice VLAN when combined with a data VLAN separates thevoice and data traffic.

Option B is a little more interesting. RFC 1918 is the use of private IP address ranges.These IP addresses are the: 10.0.0.0 range, 172.16.0.0 through 172.32.0.0 and192.168.0.0 address ranges. One important benefit is that the RFC 1918 addressesallow you to deploy a range of addresses any way you want and can be combined. Sothat you may choose to deploy the 10.0.0.0 subnets at the larger sites, the 172.16.0.0through 172.32.0.0 at medium sized sites and 192.168.0.0 at small sites. It also

provides a small security improvement because the RFC 1918 addresses are un-routable on the Internet. Does this keep from having to totally re-address the network?Yes, you could continue to use the existing registered addresses for the data VLANand the RFC 191 addresses for the voice VLAN.

Option C is also correct.

Option E is incorrect although there are companies that have chosen to deployseparate switches for the voice and data VLANs, this is not a best practice.

Option F is incorrect. The voice VLAN does not make any difference to the spanning-tree overhead. Spanning-tree can be manipulated to improve convergence for both thedata and voice VLANs.


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Practice Task

A. The voice VLAN when combined with a data VLAN separate the voice anddata traffic.

B. A voice VLAN allows RFC 1918 to be used for voice network addressingpreserving the registered IP address space.

C. It simplifies QoS configuration.D. Requires separate network connections for the data and voice networks.

E. Requires separate switches to support the data and voice VLANs.

F. A voice VLAN reduces spanning tree overhead.

VLAN Configuration

You have a customer that is interested in deploying a Unified

Communications network to replace their existing PBX. They havea LAN that is using a registered IP address range that do not haveenough free IP addresses to support both a data and voice network.You want to make a point of discussing voice VLANs with yourcustomer, what characteristics do you need to emphasize?(Choose three.)

This is a scenario task that assess your knowledge of VLAN concepts. Look at thestem. You have a customer that has an IP network using registered addresses anddoesnt have enough free IP addresses to support both a voice and data network. What

do we know about a voice VLAN? Its deployed to separate the voice and data traffic. Itreduces the need for readdressing of the network. It makes QoS easier to deploy andonly requires a single wire to each workstation to support the IP phone and theattached PC. Lets look at the options.

Option A is correct. A voice VLAN when combined with a data VLAN separates thevoice and data traffic.

Option B is a little more interesting. RFC 1918 is the use of private IP address ranges.These IP addresses are the: 10.0.0.0 range, 172.16.0.0 through 172.32.0.0 and192.168.0.0 address ranges. One important benefit is that the RFC 1918 addressesallow you to deploy a range of addresses any way you want and can be combined. Sothat you may choose to deploy the 10.0.0.0 subnets at the larger sites, the 172.16.0.0through 172.32.0.0 at medium sized sites and 192.168.0.0 at small sites. It also

provides a small security improvement because the RFC 1918 addresses are un-routable on the Internet. Does this keep from having to totally re-address the network?Yes, you could continue to use the existing registered addresses for the data VLANand the RFC 191 addresses for the voice VLAN.

Option C is also correct.

Option D does actually provide the separation of the voice and data traffic this isnt abest practice. It would require twice the cable plant and switches to support thenetwork. This wouldnt be considered a correct answer.

Option E is incorrect although there are companies that have chosen to deployseparate switches for the voice and data VLANs, this is not a best practice.

Option F is incorrect. The voice VLAN does not make any difference to the spanning-

tree overhead. Spanning-tree can be manipulated to improve convergence for both thedata and voice VLANs.


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Practice Task

Drag the steps in the IP phone bootup process on the left

and place them in the correct order on the right.

The phone uses Cisco DiscoveryProtocol to learn the voice VLAN.

The phone initializes the IP stack.

The IP phone powers on.

The phone performs a POST.

The phone boots.

Phone Bootup Process

1.

2.

3.

5.

4.


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Practice Task

Drag the steps in the IP phone bootup process on the left

and place them in the correct order on the right.

1.

2.

3.

5.

4.

Phone Bootup Process

The phone uses Cisco DiscoveryProtocol to learn the voice VLAN.

The phone initializes the IP stack.

The IP phone powers on.

The phone performs a POST.

The phone boots.

After an IP phone receives power, the following happens:

Power-on self-test (POST): The phone performs a set of tests to

ensure basic functionality. Bootup: The phone begins the boot process.

Voice VLAN discovery: The phone learns which VLAN is the voiceVLAN using Cisco Discovery Protocol.

IP stack initializing: The phone initializes a basic IP stack.


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Practice Task

A. It provides a method of having DHCP serve the same IP addressto the same device every time.

B. It removes addresses from the DHCP subnet so they can beused for other devices that require static addresses like serversor gateway.

C. It provides a method of having DHCP serve up addressesreserved for servers and gateways.

D. It provides a method of removing IP addresses reserved fordata VLANs.

DHCP

What is the point of using the ip dhcp excluded-

address command?

Lets take a look at the stem. The ip dhcp excluded-address commanduses a starting IP address and an ending IP address. The addressesbetween the start and end are the IP addresses the DHCP pool will usefor devices that request an IP address through DHCP. The addressesthat are excluded are typically used on devices that require staticaddresses, such as servers, gateways, routers and switches. So thecorrect answer for this task is B.

Reference:http://www.cisco.com/en/US/docs/voice_ip_comm/unity_exp/design/CP_CIPExpress/cipce15.html#wp1011154 Step 3- Initial CiscoCME System Setup


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Practice Task

A. It provides a method of having DHCP serve the same IP addressto the same device every time.

B. It removes addresses from the DHCP subnet so they can beused for other devices that require static addresses like serversor gateways.

C. It provides a method of having DHCP serve up addressesreserved for servers and gateways.

D. It provides a method of removing IP addresses reserved fordata VLANs.

DHCP

What is the point of using the ip dhcp excluded-address

command?

Lets take a look at the stem. The ip dhcp excluded-address commanduses a starting IP address and an ending IP address. The addressesbetween the start and end are the IP addresses the DHCP pool will usefor devices that request an IP address through DHCP. The addressesthat are excluded are typically used on devices that require staticaddresses, such as servers, gateways, routers and switches. So thecorrect answer for this task is B.



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Practice Task

A. The default gateway has the wrong IP address.

B. The option 150 command is missing.

C. The subnet overlaps with the data VLAN.

D. The ip dhcp excluded-address range is wont allow any IP addresses to be deployed.

CMERouter1# show running-configuration!

!ip dhcp excluded-address 10.1.10.1 10.1.10.10ip dhcp excluded-address 10.1.10.21 10.1.10.254ip dhcp excluded-address 10.1.110.1 10.1.110.10ip dhcp excluded-address 10.1.110.21 10.1.110.254!ip dhcp pool Datanetwork 10.1.10.0 255.255.255.0default-gateway 10.1.10.1!ip dhcp pool Voicenetwork 10.1.110.0 255.255.255.0default-gateway 10.1.110.1

DHCP

Refer to the exhibit. You have configured a DHCP pool for the 10 IP phones onyour network. The phones are receiving IP addresses, but are not getting theconfiguration files from the Cisco Unified Communications Manager Express.

What is the problem?

The ip dhcp excluded-address command is correct. For bothsubnets the first 10 IP addresses are being excluded for servers,gateways, routers and switches. The number of addresses the dhcpserver will serve up for both the voice and data VLANs is between therange of 11 and 254, so 25



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A. The default gateway has the wrong IP address.

B. The option 150 command is missing.

C. The subnet overlaps with the data VLAN.

D. The ip dhcp excluded-address range is wont allow any IP addresses to be deployed.

Practice Task

CMERouter1# show running-configuration!

!ip dhcp excluded-address 10.1.10.1 10.1.10.10ip dhcp excluded-address 10.1.10.21 10.1.10.254ip dhcp excluded-address 10.1.110.1 10.1.110.10ip dhcp excluded-address 10.1.110.21 10.1.110.254!ip dhcp pool Datanetwork 10.1.10.0 255.255.255.0default-gateway 10.1.10.1!ip dhcp pool Voicenetwork 10.1.110.0 255.255.255.0default-gateway 10.1.110.1

DHCP

Refer to the exhibit. You have configured a DHCP pool for the 10 IP phones onyour network. The phones are receiving IP addresses, but are not getting theconfiguration files from the Cisco Unified Communications Manager Express.

What is the problem?

The ip dhcp excluded-address command is correct. For bothsubnets the first 10 IP addresses are being excluded for servers,gateways, routers and switches. The number of addresses the dhcpserver will serve up for both the voice and data VLANs is between therange of 11 and 254, so 25



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Practice Task

Refer to the exhibit. Drag the correct configuration commands on the left into the router configurationon the right to configure three ephone-dns starting with extension 2000. Each ephone-dn must allow

consultative transfer. Add the configured ephone-dns to the ephone 1 configuration so that buttonone has the lowest extension number and button 2 supports an overlay with call waiting. Not alloptions will apply.

MAC 000F.2470.F8F8

!

!

!

ephone 1

button 1:1 2o2 3

ephone-dn 1 dual-line

button 1:1 2c2 3

number 2000


number 2001

number 2002


ephone-dn 1

ephone-dn 2

ephone-dn 3

Ephone-dn and Ephone Configuration

mac-address 000f.2470.f8f8


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Practice Task

Refer to the exhibit. Drag the correct configuration commands on the left into the router configurationon the right to configure three consecutive ephone-dns starting with extension 2000. Each ephone-dn

must allow consultative transfer. Add the configured ephone-dns to the ephone 1 configuration sothat button one has the lowest extension number and button 2 supports an overlay with call waiting.Not all options will apply.

MAC 000F.2470.F8F8

!

!

!

ephone 1

button 1:1 2o2 3ephone-dn 1 dual-line

button 1:1 2c2 3

number 2000

ephone-dn 3 dual-linenumber 2002


ephone-dn 1

ephone-dn 2

ephone-dn 3

Ephone-dn and Ephone Configuration

mac-address 000f.2470.f8f8

number 2001

Look at the stem. We need to configure three ephone-dns that start withextension 2000, and we need t make sure they can do consultativetransfer. This means that all the ephone-dns will be dual-lines. Then weneed to configure ephone 1. We need to add the mac address first then

we need to add the ephone-dns to the buttons. The first button has to bethe lowest ephone-dn, so ephone-dn 1 will be associated with button 1.Next you need to configure an overlay where a call waiting beep isheard for the lines in the overlay group. This is the 2c2 3 portion of thebutton command. The 2o2 3 is a standard overlay and wont provide call

waiting.

Reference:http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/command/reference/cme_cr.html


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Practice Task

A. The call will ring on the second channel on Ephone 5.B. The call will ring on the second channel on both Ephones 4 and 5.

C. The call will ring on the second channel of Ephone 4.

D. The call will receive a busy tone because both ephone-dns are busy.

1004 on Line Button 2


Ephone 4

Ephone 5

Button 2 preference 0huntstop channel

1004

1004

Button 2preference 1huntstop channel

1004

1004

Hunt Groups

Refer to the exhibit. If a third call is placed to extension 1004,how will the call be treated?

This task covers tow ephone-dns , one number on different ephones.

When the first call is placed to extension 1004 Ephone 4 is used first if

available because it has a better preference. Preference 0 is morepreferred than preference 1; the default is 0.

When the ephone-dn 1004 is being used on ephone 4, and a secondincoming call to extension 1004 will use the ephone-dn assigned toephone 5.

A third call receives busy treatment if both ephone-dns are being usedonephones 4 and 5.

The huntstop channel command allows only one call to go to the

ephone-dn. The second channel of the ephone-dn can be used for aconsultative transfer, to place a call on hold, or to place an outboundcall.

Unlike a shared line appearance, if a call is placed on hold, only theoriginal phone is able to retrieve the call.



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Practice Task

A. The call will ring on the second channel on Ephone 5.B. The call will ring on the second channel on both Ephones 4 and 5.

C. The call will ring on the second channel of Ephone 4.

D. The call will receive a busy tone because both ephone-dns are busy.



Ephone 5

Ephone 4 Button 2preference 0huntstop channel

1004

1004

Button 2preference 1huntstop channel

1004

1004

Hunt Groups

Refer to the exhibit. If a third call is placed to extension 1004,how will the call be treated?

This task covers tow ephone-dns , one number on different ephones.

When the first call is placed to extension 1004 Ephone 4 is used first if

available because it has a better preference. Preference 0 is morepreferred than preference 1; the default is 0.

When the ephone-dn 1004 is being used on ephone 4, and a secondincoming call to extension 1004 will use the ephone-dn assigned toephone 5.

A third call receives busy treatment if both ephone-dns are being usedonephones 4 and 5.

The huntstop channel command allows only one call to go to the

ephone-dn. The second channel of the ephone-dn can be used for aconsultative transfer, to place a call on hold, or to place an outboundcall.

Unlike a shared line appearance, if a call is placed on hold, only theoriginal phone is able to retrieve the call.



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Practice Task

A. 100 Mb/sB. 10 Mb/s

C. 512 kb/s

D. 256 kb/s

QoS Configuration

Refer to the exhibit. What is the maximum bandwidth availableto packets going from the PC to the server?

IP IP IP IP

10 Mb/s256 kb/s 512 kb/s

100 Mb/s

This task assesses your knowledge of bandwidth. On the surface it looks like there is alot of bandwidth available for the traffic from the PC to the server, but if you considerthere might be multiple types of traffic all competing for the bandwidth, there may be alot less than anticipated. The result is that QoS is needed so that all the different

competing traffic flows all have a reasonable chance in crossing the links. Dependingon the types of traffic some traffic flows may need to be prioritized over others becausethey are drop or delay sensitive. The exhibit in the task shows an IP WAN scenario, butthis could also be a LAN switch problem as well,. In a LAN switch environment thoughthe link speeds are typically higher and can be upgraded at a much lower cost than aWAN link. Lets look at the options.

Option A is the link from the router to the server. In todays networks this link is typicallya switched connection with a minimum of 100 Mb/s Ethernet and may be up to 1 Gb/sGigabit Ethernet.

Option B is the link from the PC to the first router. This link is typically a switchedconnection that has a minimum link speed of 10 Mb/s and may be as high as 1 Gb/s.

Option C is a serial link between the second and third routers. Serial connections aretypically T1/E1 connections for most networks, but may be as high as T3/E3 (45 Mb/s)or higher if connected to a Metropolitan Area Network (MAN).

Option D is the serial link between the first and second routers. The same holds true forthis link as it did for Option C. The issue is that when you look at these connections, thelowest speed link is the speed on which you need to base you QoS policies. If you hadchosen one of the higher speed links you could run into a problem where moderate tosever over-subscription might occur. Over-subscription is a phenomena where moretraffic is arriving at an input interface or queue than can be accommodated. This resultsin two problems delay and packet loss. This results in poor call and video quality.

The correct answer is D.

Reference:http://www.cisco.com/application/pdf/en/us/guest/netsol/ns432/c649/ccmigration_09186a008049b062.pdf (Chapters 2 and 3)


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Practice Task

A. dial-peer voice 9 potsdestination-pattern 9.port 1/0/0

B. dial-peer voice 9 potsdestination-pattern 9Tport 1/0/0

C. dial-peer voice 9 potsdestination-pattern 9#voice port 1/0/0

D. dial-peer voice 9 pots

destination-pattern 9$port 1/0/0

E. dial-peer voice 9 potsdestination-pattern 9%port 1/0/0

Dial Peer Configuration

Which of the following single dial peers will support using an access

code of 9 and support local, long distance and international dialing?

We need to configure a single dial peer that will support local, long distance andinternational dialing. This means that the destination-pattern will need to start with a 9for the access code and then use one or more wildcards to match all the possible digitsdialed for a local, long distance or international number.

The first option has a destination pattern of 9. The dot wildcard specifies any onewildcard digit. So if you dial 9555-1212. The voice port will send 5 to the PSTN. Thisbrings up another point. Any specific digit specified in the destination pattern will bedropped and not sent to the PSTN. So there may be cases where you need to forwardsome sequence of digits. For example 9911 for emergency services would need anadditional line in the dial peer. The configuration could be forwarddigits 3, whichmeans that the dial peer will forward the right most three digits. The alternative is touse the prefix command. Prefix 911 will allow the dial peer to send 911 to the PSTNeven though 911 is specified in the destination pattern.

The second option has a destination pattern of 9T. The T wildcard matches a variablelength pattern. This would match local, long distance and international phone numbers.The only issue you have with this command is that the router will wait for 15 second forthe inter-digit timer to expire before routing the call. Option B is the correct answer.

The third option has a destination pattern using the #. This is an invalid wildcard sincethis is a DTMF tone.

The fourth option has a destination pattern that uses the $ wildcard. This is an invalidwildcard and can be used in translation rules, but not dial peers.

The fifth option has a destination pattern that uses the % wildcard. The % matches thepreceding digit zero or more times. This is a problem, because the only digit dialed is 9and that would be matched.

Reference:http://www.cisco.com/en/US/docs/ios/12_3t/voice/command/reference/vrht_d1_ps5207_TSD_Products_Command_Reference_Chapter.html#wp1459870 Destination Pattern


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Practice Task

A. dial-peer voice 9 potsdestination-pattern 9.port 1/0/0

B. dial-peer voice 9 potsdestination-pattern 9Tport 1/0/0

C. dial-peer voice 9 potsdestination-pattern 9#voice port 1/0/0

D. dial-peer voice 9 pots

destination-pattern 9$port 1/0/0

E. dial-peer voice 9 potsdestination-pattern 9%port 1/0/0


Which of the following single dial peers will support using an access

code of 9 and support local, long distance and international dialing?

We need to configure a single dial peer that will support local, long distance andinternational dialing. This means that the destination-pattern will need to start with a 9for the access code and then use one or more wildcards to match all the possible digitsdialed for a local, long distance or international number.

The first option has a destination pattern of 9. The dot wildcard specifies any onewildcard digit. So if you dial 9555-1212. The voice port will send 5 to the PSTN. Thisbrings up another point. Any specific digit specified in the destination pattern will bedropped and not sent to the PSTN. So there may be cases where you need to forwardsome sequence of digits. For example 9911 for emergency services would need anadditional line in the dial peer. The configuration could be forwarddigits 3, whichmeans that the dial peer will forward the right most three digits. The alternative is touse the prefix command. Prefix 911 will allow the dial peer to send 911 to the PSTNeven though 911 is specified in the destination pattern.

The second option has a destination pattern of 9T. The T wildcard matches a variablelength pattern. This would match local, long distance and international phone numbers.The only issue you have with this command is that the router will wait for 15 second forthe inter-digit timer to expire before routing the call. Option B is the correct answer.

The third option has a destination pattern using the #. This is an invalid wildcard sincethis is a DTMF tone.

The fourth option has a destination pattern that uses the $ wildcard. This is an invalidwildcard and can be used in translation rules, but not dial peers.

The fifth option has a destination pattern that uses the % wildcard. The % matches thepreceding digit zero or more times. This is a problem, because the only digit dialed is 9and that would be matched.

Reference:http://www.cisco.com/en/US/docs/ios/12_3t/voice/command/reference/vrht_d1_ps5207_TSD_Products_Command_Reference_Chapter.html#wp1459870 Destination Pattern


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Practice Task

A. 9

B. 911

C. 9911D. No digits are forwarded

dial-peer voice 9911 potsdestination-pattern 9911

port 1/0/0


Refer to the exhibit. What digits are forwarded to thePSTN in the following pots dial?

In a pots dial peer the all the digits that are explicitly called out in thedestination pattern are dropped by the dial peer. In the exhibit no digits

would be forwarded. To make this dial peer operate properly, you wouldneed to either add the prefix 911 command or the forward-digits 3command. The forward-digits 3 command forwards the right three mostdigits to the PSTN.

Reference:http://www.cisco.com/en/US/docs/ios/12_3t/voice/command/reference/vrht_d1_ps5207_TSD_Products_Command_Reference_Chapter.html#wp1459870 Destination Pattern Usage Guidelines


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Section 4:Implementing CiscoUnity Express


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Practice Task

A. The service-module ip default-gateway address is incorrect.

B. The IP address of the service-engine should be outside the excluded-address range.

C. The IP address of the Service-Engine should be the same as interface Loopback 0.

D. The ip unnumbered Loopback 0 command is missing from interface Service-Engine 1/0.

ip dhcp excluded-address 10.19.153.0 10.19.153.10interface Loopback 0

ip address 10.19.153.1 255.255.255.0interface Service-Engine1/0

service-module ip address 10.19.153.2 255.255.255.0service-module ip default-gateway 10.19.153.1

ip route 10.19.153.2 255.255.255.255 service-engine 1/0

Cisco Unity Configuration

Refer to the exhibit. You have configured your Cisco UnifiedCommunications Manager Express to support Cisco Unity Express.When you try to use the service-engine service-module 1/0session command to gain access to the Cisco Unity Express you receivethe following error message IP address needs to be configuredon interface Service-Engine1/0. What needs to be edited or

changed to resolve the issue?

This tasks asks you to determine the root cause of a problem. You haveconfigured a Cisco Unity Express module and now you are unable touse the service-engine service-module 1/0 session

command to connect to it.

Option A is incorrect. The service-module ip default-gatewayaddress should be IP address configured forinterface Loopback 0

Option B is incorrect. Any IP address that is outside of the excludedaddress range in the ip dhcp excluded-addresswill be dynamic.Remember for devices such as IP phones that is fine, but for servers,routers, and gateways you need a static address or youll have tochange the configuration of the router every time you reload it or theservice engine.

Option C is incorrect. For an exact match the subnet mask needs to be255.255.255.255.

Option D is correct. Remember a loopback interface is the most stabletype of interface in a router. It cannot go down because of a mediafailure. Using a loopback here allows you to create an IP subnet that theservice-engine can use for its configuration. Using the ipunnumbered Loopback 0 command allows the interface to becomeactive and also allows you to configure the service-module to become amember of that subnet.


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Practice Task

A. The service-module ip default-gateway address is incorrect.

B. The IP address of the service-engine should be outside the excluded-address range.

C. The IP address of the Service-Engine should be the same as interface Loopback 0.

D. The ip unnumbered Loopback 0 command is missing from interface Service-Engine 1/0.

ip dhcp excluded-address 10.19.153.0 10.19.153.10interface Loopback 0

ip address 10.19.153.1 255.255.255.0interface Service-Engine1/0

service-module ip address 10.19.153.2 255.255.255.0service-module ip default-gateway 10.19.153.1

ip route 10.19.153.2 255.255.255.255 service-engine 1/0

Cisco Unity Configuration

Refer to the exhibit. You have configured your Cisco UnifiedCommunications Manager Express to support Cisco Unity Express.When you try to use the service-engine service-module 1/0session command to gain access to the Cisco Unity Express you receivethe following error message IP address needs to be configuredon interface Service-Engine1/0. What needs to be edited or

changed to resolve the issue?

This tasks asks you to determine the root cause of a problem. You haveconfigured a Cisco Unity Express module and now you are unable touse the service-engine service-module 1/0 session

command to connect to it.

Option A is incorrect. The service-module ip default-gatewayaddress should be IP address configured forinterface Loopback 0

Option B is incorrect. Any IP address that is outside of the excludedaddress range in the ip dhcp excluded-addresswill be dynamic.Remember for devices such as IP phones that is fine, but for servers,routers, and gateways you need a static address or youll have tochange the configuration of the router every time you reload it or theservice engine.

Option C is incorrect. For an exact match the subnet mask needs to be255.255.255.255.

Option D is correct. Remember a loopback interface is the most stabletype of interface in a router. It cannot go down because of a mediafailure. Using a loopback here allows you to create an IP subnet that theservice-engine can use for its configuration. Using the ipunnumbered Loopback 0 command allows the interface to becomeactive and also allows you to configure the service-module to become amember of that subnet.


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Practice Task

A. Audio-based interface using the phone

B. Recording of personal greeting

C. Prompt management and recording

D. Alternate emergency, vacation, or holiday greeting

E. Recording spoken name

F. Manager phone setting for associated device

Cisco Unity Express Configuration

Which of the following are capabilities associated with

the TUI for a Cisco Unity Express Administrator?(Choose three.)

Were trying to determine if you can differentiate between thecapabilities the TUI can provide to administrators and end-users.

Option A is correct. The TUI is an audio-based interface that uses thephone and is available to both the administrator and end-user.

Option B is incorrect. This is a feature only available to the end-user.

Option C is correct. The administrator TUI provides the capability tomanage and record prompts.

Option D is correct. The administrator can create alternate emergency,vacation or holiday greetings through the TUI.

Option E is incorrect. This is another TUI capability only accessible bythe end-user.

Option F is incorrect. This feature is also only available to the end user.


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Practice Task

A. Audio-based interface using the phone

B. Recording of personal greeting

C. Prompt management and recording

D. Alternate emergency, vacation, or holiday greeting

E. Recording spoken name

F. Manager phone setting for associated device


Which of the following are capabilities associated with

the TUI for a Cisco Unity Express Administrator?(Choose three.)

Were trying to determine if you can differentiate between thecapabilities the TUI can provide to administrators and end-users.

Option A is correct. The TUI is an audio-based interface that uses thephone and is available to both the administrator and end-user.

Option B is incorrect. This is a feature only available to the end-user.

Option C is correct. The administrator TUI provides the capability tomanage and record prompts.

Option D is correct. The administrator can create alternate emergency,vacation or holiday greetings through the TUI.

Option E is incorrect. This is another TUI capability only accessible bythe end-user.

Option F is incorrect. This feature is also only available to the end user.


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A. Create SIP dial peers for directing calls into Cisco Unity Express.

B. Configure NTP settings if the router is the NTP server.

C. Set up IP addressing for the Cisco Unity Expresshardware module.

D. Configure a static route to the address of the Cisco UnityExpress module.

E. Set up routing and IP addressing on the router.

Practice TaskCisco Unity Express

What are the Cisco IOS router prerequisites for Cisco

Unity Express Support? (Choose three.)

There are prerequisites for both the Cisco IOS router and the CiscoUnity Express Module.

Option A is incorrect. You might consider this a trick answer, but theprerequisites for the IOS router are related to IP addresses, static routesand interface configurations. The SIP dial peer while necessary for callsto be routed properly to the Cisco Unity Express are related to thesupport of the Unity Express module more than a foundation function ofthe router.

Option B is incorrect. Even if the router isnt the NTP server you need toconfigure the Unity Express module to support NTP. This way thetimestamps for each voice mail will be synchronized and correct.

Option C is correct. The router need to be configured with a Loopback

interface with an IP address that can be used by the service-engine.

Option D is correct. A static route needs to be applied in the router sothat ip packets can be routed properly to the service-engine.

Option E is correct. Foundation routing and IP addressing needs to beconfigured so the router can communicate with other devices on thenetwork including interfaces to the PSTN.


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Practice Task

A. Create SIP dial peers for directing calls into Cisco Unity Express.

B. Configure NTP settings if the router is the NTP server.

C. Set up IP addressing for the Cisco Unity Expresshardware module.

D. Configure a static route to the address of the Cisco UnityExpress module.

E. Set up routing and IP addressing on the router.

Cisco Unity Express

What are the Cisco IOS router prerequisites for Cisco

Unity Express Support? (Choose three.)

There are prerequisites for both the Cisco IOS router and the CiscoUnity Express Module.

Option A is incorrect. You might consider this a trick answer, but theprerequisites for the IOS router are related to IP addresses, static routesand interface configurations. The SIP dial peer while necessary for callsto be routed properly to the Cisco Unity Express are related to thesupport of the Unity Express module more than a foundation function ofthe router.

Option B is incorrect. Even if the router isnt the NTP server you need toconfigure the Unity Express module to support NTP. This way thetimestamps for each voice mail will be synchronized and correct.

Option C is correct. The router need to be configured with a Loopback

interface with an IP address that can be used by the service-engine.

Option D is correct. A static route needs to be applied in the router sothat ip packets can be routed properly to the service-engine.

Option E is correct. Foundation routing and IP addressing needs to beconfigured so the router can communicate with other devices on thenetwork including interfaces to the PSTN.


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Practice Task

A. ephones

B. POTS dial peers

C. VoIP dial peers

D. ephone templates

E. ephone-dns


Which Cisco Unified Communications Manager

configuration component is associated with MWI on/off?

MWI is the Message Waiting Indicator and needs to be turned on whenmessages are left and turned off when messages are retrieved.

Option A is incorrect. Ephones are physical devices. An MWI on/offnumber is not a physical device.

Option B is incorrect. POTS dial peers are used to communicate withthe PSTN. The MWI on/off setting is used only between Cisco UnityExpress and Cisco Unified Communications Manager Express to turn onor off the MWI light on the phone.

Option C is incorrect. Voip dial peers are used to communicate withother IP devices and a VoIP dial peer is used to communicate with theCisco Unity Express device so messages can be left for users, but inthis case the MWI on/off setting doesnt use a VoIP dial peer.

Option D is incorrect. An ephone template is a way to configure featureson ephones. For example, if you want to change the softkey buttons onan IP phone, you can create an ephone template with the buttons you

want to see and apply it to specific ephones.

Option E is correct. The MWI on and off functions are directory numbersthat are called by Cisco Unity Express to turn on or off the MWI light fora specific IP phone.


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Q and A


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Recommended Reading

Continue your Cisco Live

learning experience with furtherreading from Cisco Press

Check the RecommendedReading flyer for suggestedbooks

Available Onsite at the Cisco Company Store


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Documents

CCNA Voice Certification