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Updated: Oct 29, 2026
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Cisco 642-457 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Implementing Cisco Unified Communications Manager, Part 2 (CIPT2 v8.0) |
| Exam Number: | 642-457 |
| Real Exam Qty: | 45-55 |
| Exam Format: | Multiple answer, Multiple choice, Simulations (simlets) |
| Related Certifications: | Cisco Certified Network Associate (CCNA Voice) Cisco Certified Network Professional (CCNP Voice) |
| Certificate Validity Period: | Retired (legacy exam, no longer offered) |
| Available Languages: | English |
| Exam Duration: | 90 minutes |
| Sample Questions: | Cisco 642-457 Sample Questions |
| Exam Way: | Delivered via Pearson VUE testing centers (onsite or authorized remote proctor depending on region availability) |
| Pre Condition: | Recommended prerequisite: Cisco Unified Communications Manager Part 1 (CIPT1 642-446) or equivalent CCNA Voice knowledge |
Cisco 642-457 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Call Routing and Gateway Integration | - SIP and H.323 trunk configuration - PSTN connectivity and gateways |
| Troubleshooting and Maintenance | - Call flow analysis and trace tools - CUCM serviceability tools |
| Media Resources and Services | - MOH and MTP configuration - Conferencing and transcoding resources |
| Dial Plan Implementation | - Calling search spaces and partitions - Route patterns and translation patterns |
| Advanced CUCM Features | - Extension Mobility - Call pickup and hunt groups - Device pools and regions |
| CUCM Architecture and Deployment | - Cluster design and redundancy concepts - Cisco Unified Communications Manager components |
Cisco Implementing Cisco Unified Communications Manager, Part 2 v8.0 (CIPT2 v8.0) Sample Questions:
Which configuration command disables the secondary dial tone on the branch office ISR for users calling from the PSTN into the branch office during a WAN failure?
- A. application
- B. voice translation-rule
- C. direct-inward-dial
- D. incoming called-number
Correct Answer: C 🗳️
Refer to the exhibit.
Which configuration change is needed to enable NANP international dialing during MGCP fallback?
- A. Add the command prefix 011 to the dial peer.
- B. Change the dial peer to dial-peer voice 9011 pots.
- C. Change the dial peer to dial-peer voice 901 voip.
- D. Add the command prefix 9011 to the dial peer.
Correct Answer: A 🗳️
Which two options enable routers to provide basic call handling support for Cisco Unified IP Phones if they lose connection to all Cisco Unified Communications Manager systems? (Choose two.)
- A. MGCP fallback
- B. Cisco Unified Communications Manager Express in SRST mode
- C. SCCP fallback
- D. Cisco Unified Survivable Remote Site Telephony
- E. Cisco Unified Communications Manager Express
Correct Answer: B,D 🗳️
The corporate WAN has been extended to two newly acquired sites and it includes gatekeeper support. Each site has a Cisco CallManager and an H.323 gateway that allows connection to the PSTN. Which connection method is best for these two new customers?
- A. H.225 trunk (gatekeeper-controlled)
- B. intercluster trunk (gatekeeper-controlled)
- C. intercluster trunk (non-gatekeeper controlled)
- D. SIP trunk
Correct Answer: B 🗳️
Which trunk should you use in an H.323 gatekeeper-controlled network?
- A. SIP
- B. MGCP T1/E1 trunk
- C. H.323
- D. MGCP FXO trunk
- E. H.225
- F. Intercluster
Correct Answer: E 🗳️
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