IP Telephony Express(IPTX) : 642-144 Exam

642-144 IPTX
IP Telephony Express Exam

Exam Number: 642-144
Associated Certifications: Cisco IP Communications Express Specialist
Duration: 90 minutes (75 questions)
Available Languages: English
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Exam Description Exam Topics Recommended Training Additional Resources
Exam Description
The IP Telephony Express 642-144 IPTX is the exam associated with the Cisco IP Communications Express Specialist certification. Candidates can prepare for this exam by taking the IP Telephony Express (IPTX) course. This exam tests a candidate’s knowledge of VoIP and PSTN components and technologies and the candidate’s ability to install, configure and support Cisco Unified CallManager Express and Cisco Unity Express products in a Cisco network. Topics covered include basic VoIP, PSTN, and SIP, CallManager Express and Unity Express.

Exam Topics
The following information provides general guidelines for the content likely to be included on this exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposed the guidelines below may change at any time without notice.

Describe basic VoIP and PSTN components and technologies
Describe the function of codecs and the differences between them
Describe conditions that can effect the quality of VoIP calls
Describe traditional telephony components including PBX, trunk lines, key-systems, and tie lines
Describe the components of Cisco Unified Communications architecture
Describe the analog and digital signaling types used in TDM networks
Describe the function and application of analog IP Gateways (ATA, NMHDV, FXS, SCCP FXS)
Describe TAPI and how it applies to the CRM Connector

Describe and configure a Cisco network to support Cisco Unified CallManager Express
Explain the need for QoS and the locations where QoS is required
Configure switched infrastructure to support Cisco Unified CallManager Express
deployment, including VLANs, port configurations, and PoE
Describe management tools available for Cisco Unified CallManager Express
Describe the network requirements for supporting teleworkers

Install Cisco Unified CallManager Express in any supported environment.
Explain the router file system required to support Cisco Unified CallManager Express
Determine the router hardware features related to Cisco Unified CallManager Express support
Obtain and load the appropriate Cisco Unified CallManager Express software components
Describe the requirements and correct settings for DHCP, NTP, and TFTP in a Cisco Unified CallManager Express environment
Configure DHCP, NTP and TFTP to support Cisco Unified CallManager Express
Describe Cisco Unified CallManager Express QCT

Configure Cisco Unified CallManager Express to support IP Telephone feature requirements
Compare and contrast the features of different types of ephones and ephone-dns
Configure ephones and ephone-dns

Describe initial phone setup process
Configure analog voice ports per design specifications
Configure digital voice ports per design specifications
Configure call-transfer per design specifications
Configure or enable additional IP phone features, including ring-tones and productivity tools
Configure dial-peers per design specifications
Configure digit manipulations to meet design requirements
Configure Music on Hold
Configure Cisco Unified CallManager Express to support fax services
Describe and configure Cisco Unified CallManager Express in key system or PBX mode
Configure B-ACD application
Describe and configure a localized version of Cisco Unified CallManager Express

Configure Cisco Unified CallManager Express to support SIP Telephony feature requirements
Compare and contrast the features of different types of Register-dn and voice register pools
Configure Register-dn and voice register pools
Describe initial SIP phone setup process

Configure Cisco Unity Express in a Cisco Unified CallManager Express environment.
Describe the features available in Cisco Unity Express
Describe the procedure to install or upgrade the Cisco Unity Express software
Describe the Cisco Unity Express configuration tasks
Describe both of the Cisco Unity Express hardware platforms
Configure Cisco Unity Express system components
Configure users, groups and mailboxes using CLI
Describe the configuration requirements to support the GUI
Configure MWI on/off ports
Configure pilot number for Cisco Unity Express
Describe Cisco Unity Express back-up parameters and procedure
Backup/Restore/Copy configuration files for Cisco Unity Express
Explain troubleshooting methods using the CLI or GUI
Describe and configure Cisco Unity Express integrated messaging
Describe & configure Voice View Express
Describe and configure a localized version of Cisco Unity Express
Describe and configure Voicemail networking

Describe basic Cisco Unified CallManager Express and Cisco Unity Express deployment models
Describe the supported Cisco Unified CallManager Express deployment models
Describe the supported Cisco Unity Express deployment models

Exam Number/Code: 642-144
Exam Name:IP Telephony Express(IPTX)

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QUESTION 11:
Certkiller .com wants to create has its own locale file to accommodate a non-supported
German Language among its customers from Leipzig. This is the first locale file the
company has tried to create. Which tag number will it assign to this locale?
A. U1
B. It is impossible to create a locale with Cisco Unity Express
C. U0
D. 1
E. 0
F. There will be no tag number, since it is only possible to create one locale
Answer: A
QUESTION 12:
Where do the CUE GUI files reside when enabled?
A. Flash Memory on a CUE module
B. Router Flash
C. A Stand-alone web server
D. The TFTP server
Answer: A
QUESTION 13:
DRAG DROP
You work as a network engineer at Certkiller .com. Your boss, Mrs. Certkiller, is
interested in Cisco AutoQos deployment. Match the description with the proper
algorithm.
642-144
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Answer:
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QUESTION 14:
Certkiller .com is performing a backup in anticipation of a Cisco Unity Express upgrade.
The system operator is taking the CUE module offline during one of the company’s
busiest times. What will the result be?
A. Callers will notice no difference for the duration of their existing call
B. Subscribers will not see difference
C. Callers and subscribers will be cut off without warning
D. Subscribers will only be affected when their current “subscription” is complete
E. A warning goes out to the subscribers, who can then alert callers to the anticipated
down time
Answer: C
QUESTION 15:
Certkiller .com is a medium-size, not-for-profit group that wants to implement centralized
call processing. The group will implement a hub-and-spoke topology with all of the
remote branches utilizing Cisco Unified CallManger Express connected to the central site
using Cisco Unified CallManger via an IP WAN. The remote branch will be limited to
150 IP phones so the local gateway can provide SRST feature through Cisco CallManger
Express. Each time a remote branch phone places a call, the control taffic traverses the IP
WAN (even if the call is local to the branch) to reach the Cisco Unified CallManager at
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the Central Site. All the control traffic exchanged between a Cisco CallManager at the
central site and endpoints or gateways at the remote branches.
Which two signaling protocols can traverse the IP WAN in this deployment model? (
Choose two.)
A. H.450.1
B. SCGP
C. H..323
D. H.450.2
E. SCCP
Answer: C,E
QUESTION 16:
Exhibit:
Your work as a network technician at Certkiller .com. Please study the exhibit carefully.
Certkiller .com was having difficulty hearing during conference calls. This configuration
adjustment was made and now the company is experiencing sound distortion. What is the
cause?
A. The distortion is unrelated to the gain functionality. Rather it is a result of the
company trying to maintain too many conference calls to one time
B. This functionality can’t discriminate between a local VoIP source that requires volume
gain and a CO-powered PSTN source that does not require volume gain
C. The gain functionality applies to outbound audio packets. Distortion is created when
an external participant causes echo
D. This functionality can’t discriminate between a remote VoIP or foreign Exchange
office source volume gain and a remote VoIP or IP phone that does not require volume
gain.
Answer: D
QUESTION 17:
What is the default value that a PBX or Cisco Unity Express uses to select a voice-mail
mail box?
A. Original Redirect Number
B. Forward Redirect Number
C. Last Redirect Number
D. Original Called Number
E. Last Called Number
Answer: D
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QUESTION 18:
When using the partial automated setup process, which three tasks must be completed in
order to register phones with Cisco Unitifed CallManger Express? (Choose three.)
A. Configure the maximum number of ephones that Cisco Unified CallManger Express
will support.
B. Configure the dial-up pattern to associate extensions with fully qualified E.164
numbers
C. Associate each phone type with the firmware file
D. Configure the keepalive timer
E. Enable the firmware for each phone type being downloaded
F. Configure an ephone for each phone being registered with the Cisco Unified
CallManger Express Server.
Answer: A,C,E
QUESTION 19:
The Neilson Farm has tried without success to use both Cisco Fax Relay and T.38 faxing
services with Cisco Unified CallManager Express. The only faxing service that seems to
work is fax pass-through. Which port type is connected to their fax device?
A. FXS
B. FAX
C. E&M
D. ATA
E. FXO
Answer: D
QUESTION 20:
Exhibit:
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Your work as a network technician at Certkiller .com. Please study the exhibit carefully.
Certkiller .com is backing up it’s CUE module. What is required for the User ID?
A. Read and Write permission on the Cisco Unified CallManger Express Router
B. Write permission on the directory
C. Match the Cisco Unified CallManger Express Administration User ID
D. Read and Write permission on the directory
E. Read and Write Permission on the Cisco Unity Express router
F. Match the backup Cisco Unified CallManager Express Router UserID
Answer: B

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