PDF Version DemoFrom your first practice question to exam day, Getcertkey covers the entire 642-437 journey: a free demo, 257 practice questions in three formats, a full year of free updates, and a clear refund policy. Preparing for the Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) exam has rarely been this straightforward.
Cisco 642-437 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) |
| Exam Number: | 642-437 |
| Exam Format: | Multiple Choice Single Answer, Multiple Choice Multiple Answer, Simulation, Drag and Drop |
| Exam Price: | USD 300 |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 90 minutes |
| Passing Score: | Not publicly disclosed / Approximately 750-800 out of 1000 |
| Related Certifications: | CCNA Voice CCIE Collaboration |
| Available Languages: | Japanese, English |
| Real Exam Qty: | 60-70 |
| Recommended Training: | Implementing Cisco Unified Communications Voice over IP and QoS v8.0 |
| Exam Registration: | Cisco Exam Page Pearson VUE Registration |
| Sample Questions: |  |
| Exam Way: | Onsite at Pearson VUE test centers; no online proctoring available |
| Pre Condition: | Valid CCNA Voice certification or equivalent knowledge; CCIE certification also satisfies eligibility |
| Official Syllabus URL: | https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/642-437-cvoice.html |
Cisco 642-437 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Implement Voice Gateways | 22% | - Gateway types and deployment models - Fax and modem support - Analog and digital voice ports - Dial peers configuration |
| Topic 2: Implement Cisco Unified Communications Manager Express | 18% | - IP phone registration and provisioning - Basic call features and dial plans - CUCME setup and configuration |
| Topic 3: Implement Gatekeeper and Cisco Unified Border Element | 12% | - Interoperability and security - Gatekeeper functions and configuration - CUBE deployment and features |
| Topic 4: Describe a Dial Plan | 13% | - Call routing and PSTN connectivity - Dial plan components and functions - Digit manipulation and route patterns |
| Topic 5: Implement QoS for Voice Networks | 15% | - QoS principles and requirements - Queuing mechanisms and AutoQoS - Classification, marking, and policing - Call Admission Control |
| Topic 6: Describe VoIP Call Legs and Signaling | 20% | - VoIP architecture and call flow - H.323, SIP, and MGCP protocols - Codec selection and media transport |
Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Exam FAQ: What Candidates Ask Most
What is the Cisco 642-437 exam?
The 642-437 exam is the official Cisco exam behind the CCNP Voice certification, validating the skills measured by the Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) credential. It sits at the Professional level of the Cisco certification program. It also connects to CCNA Voice, CCIE Collaboration, so the knowledge you build here carries over to those tracks as well.
How many questions are on the 642-437 exam, and how much time do I get?
The 642-437 exam contains 60-70 questions to be completed within 90 minutes. Before exam day, divide the available time by the question count to work out a comfortable per-question pace, and mark any item that eats into it so you can return later instead of getting stuck. Timed sessions in the Getcertkey test engines make that pacing automatic — run at least two full-length mock exams under the clock so time pressure never becomes the reason you drop points.
What score do I need to pass the 642-437 exam, and what does it cost?
The passing score for the 642-437 exam is Not publicly disclosed / Approximately 750-800 out of 1000, and the official registration fee is USD 300. Retakes are not discounted — every new attempt means paying the full fee again — so it pays to measure yourself before you book. Work through the 257 practice questions on Getcertkey, sit a timed practice test, and schedule your exam only when your scores are consistently comfortable. That simple habit is the cheapest exam strategy there is.
Are there any prerequisites for the 642-437 exam?
Valid CCNA Voice certification or equivalent knowledge; CCIE certification also satisfies eligibility Requirements can change when Cisco revises its certification program, so confirm the current eligibility rules on the official exam page before you register.
How do I register for the 642-437 exam?
You can book the Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) exam through the official registration channels below:
As for delivery, the exam is offered in the following format: Onsite at Pearson VUE test centers; no online proctoring available. Choose the option that suits you best when you book your seat.
What official training is recommended for the 642-437 exam?
Cisco recommends the following training resources for the Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) exam:
Official courses build the foundation; the 257 practice questions from Getcertkey then show you how that knowledge is examined, so the two work best together.
Can I try the 642-437 practice questions before I buy?
Yes. Getcertkey provides a free 642-437 PDF demo so you can review the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates — if Cisco revises the exam during that period, the updated material reaches you at no cost. Once the free-update year ends, you can extend your update service at a 50% discount.
What if I fail the 642-437 exam, and how is my order delivered?
Every Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) purchase on Getcertkey is covered by a 100% money-back guarantee with clear conditions: if you take the corresponding exam within 60 days of your purchase and do not pass, you can claim a full refund by submitting a scanned copy of your exam enrollment slip and your official score report as a PDF within two days of the exam date; claims are processed within seven days of submission. The guarantee does not apply to exams taken within three days of purchase, to material that was downloaded but never used in an exam attempt, or to free products and expired orders, and the candidate name must match the payer name. If you would rather not take a refund, you can instead exchange your purchase for two free exam preparation products of equal value and keep the update service on your original product.
Delivery is instant: your download is sent to your email within one minute of payment, with no limit on how many computers you may install the material on. If nothing arrives within two hours, check your spam folder and contact customer service for help.
What topics are covered in the 642-437 exam?
The Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) exam blueprint is organized into 6 domains. The first three are:
- Implement QoS for Voice Networks — 15% of the exam
- Describe a Dial Plan — 13% of the exam
- Implement Voice Gateways — 22% of the exam
For the complete domain-by-domain breakdown, scroll up to the full exam topics outline above and use it to plan how you distribute your study time.
Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:
Question 1
Which Cisco Unified Communications Manager component acts as a voice switch between multiple telephony circuits and can provide signaling and media conversion?
A. media exchanger
B. gatekeeper
C. PBX
D. gateway
Question 2
Which three factors must be considered when calculating the total bandwidth of a VoIP call, in order to avoid voice quality issues? (Choose three.)
A. CRC usage
B. sample size
C. capacity of network links
D. data-link overhead
E. codec size
Question 3
The command address-hiding is entered to enable the SIP-to-SIP address hiding feature. In which configuration mode is this command entered?
A. Cisco Unified Border Element configuration mode
B. SIP configuration mode
C. voice service VoIP configuration mode
D. VoIP dial-peer configuration mode
Question 4
A voice gateway has the isdn switch-type command in the global configuration and on the T1 signaling channel. Which configuration takes precedence if the two configurations are different?
A. The configuration in the T1 controller portion of the Cisco IOS configuration takes precedence over the isdn switch-type command in the global configuration.
B. The voice gateway will use the isdn switch-type command that matches the ISDN switch that is connected to the T1 controller.
C. The voice gateway parses the configuration from top to bottom and will use the first isdn switch-type entry.
D. The configuration in the global configuration always takes precedence over the interface configuration.
E. The configuration under the ISDN signaling channel takes precedence over the isdn switch-type command in the global configuration.
Question 5
Refer to the exhibit.
Cisco 642-437 Exam
When an inbound PSTN call from 4087071222 arrives at the ISDN port that is shown in the exhibit, which dial peer will be matched for the inbound leg?
A. Although dial-peer 123 takes precedence, there is no direct-inward-dial that is configured, therefore 2123 will be selected.
B. Dial-peer 123, because incoming called-number takes precedence over answer-address.
C. Although dial-peer 123 takes precedence, there is no port that is configured under dial-peer 123, therefore dial-peer 2123 will be selected.
D. The matching inbound dial peer will be selected at random.
E. Dial-peer 2123, because answer-address takes precedence over incoming called-number.
Solutions:
| Question 1 Answer: D | Question 2 Answer: B,D,E | Question 3 Answer: C | Question 4 Answer: E | Question 5 Answer: E |
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