Thank you, I passed 642-437.
"Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)", also known as 642-437 exam, is a Cisco Certification. With the complete collection of questions and answers, ExamcollectionPass has assembled to take you through 257 Q&As to your 642-437 Exam preparation. In the 642-437 exam resources, you will cover every field and category in CCNP Certification helping to ready you for your successful Cisco Certification.
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| Section | Weight | Objectives |
|---|---|---|
| Implement Voice Gateways | 22% | - Dial peers configuration - Fax and modem support - Analog and digital voice ports - Gateway types and deployment models |
| Describe a Dial Plan | 13% | - Digit manipulation and route patterns - Call routing and PSTN connectivity - Dial plan components and functions |
| Implement Gatekeeper and Cisco Unified Border Element | 12% | - Interoperability and security - CUBE deployment and features - Gatekeeper functions and configuration |
| Describe VoIP Call Legs and Signaling | 20% | - Codec selection and media transport - VoIP architecture and call flow - H.323, SIP, and MGCP protocols |
| Implement QoS for Voice Networks | 15% | - QoS principles and requirements - Queuing mechanisms and AutoQoS - Classification, marking, and policing - Call Admission Control |
| Implement Cisco Unified Communications Manager Express | 18% | - CUCME setup and configuration - Basic call features and dial plans - IP phone registration and provisioning |
What is the minimum number of RSVP peers that are necessary for a Cisco Unified Border Element to provide Call Admission Control?
Correct Answer: E 🗳️
Which digit manipulation feature allows a partial telephone number to be prepended with a specific set of digits and is applied to all calls?
Correct Answer: B 🗳️
Which of these is assigned to a phone or line to implement calling privileges?
Correct Answer: D 🗳️
What is the total number of differentiated services code point bits in the DiffServ field?
Correct Answer: C 🗳️
DRAG DROP
Drag the components that make up Cisco fax relay and T.38 from the left and drop them under the appropriate category on the right.
Cisco 642-437 Exam
Correct Answer:

Explanation:
Cisco fax relay is the oldest method of supporting fax on Cisco IOS gateways and has been supported since Cisco IOS Release 11.3. Cisco fax relay uses Real-Time Transport Protocol (RTP) as the method of transport. In Cisco fax relay mode, gateways terminate T.30 fax signaling by spoofing a virtual fax machine to the locally attached fax machine. The gateways use a Cisco-proprietary fax-relay RTP-based protocol to communicate between them.
T.38 Fax Relay provides an ITU-T standards-based method and protocols for fax relay. Data is packetized and encapsulated according to the T.38 standard. The encoding of the packet headers and the mechanism to switch from VoIP mode to fax relay mode are clearly defined in the specification.
http://www.cisco.com/en/US/docs/ios/12_3/vvf_c/voice_troubleshooting/old/vts_fax.html
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