Cisco 642-436 Exam Information and Actual Questions
- Exam Code/Number: 642-436
- Exam Name/Title: Cisco Voice over IP (CVOICE)
- Certification Provider: Cisco
- Corresponding Certification: IP Communications
- Exam Questions: 357
- Updated On: Jul 20, 2026
642-436
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Cisco
642-436 Exam
Cisco Voice over IP (CVOICE)
This exam has been stopped to register, new exam code replace: 642-437
Cisco 642-436 Exam Overview:
| Certification Vendor: | Cisco |
| Exam Name: | Cisco Voice over IP (CVOICE) |
| Exam Number: | 642-436 |
| Available Languages: | English, Japanese, Chinese |
| Real Exam Qty: | 60-70 |
| Related Certifications: | CCVP CCNA Voice CCNP Voice |
| Certificate Validity Period: | 3 years |
| Exam Format: | Multiple choice single/multiple answer, Drag-and-drop, Simulations |
| Exam Price: | $200 USD |
| Passing Score: | 750 / 1000 |
| Exam Duration: | 75 minutes |
| Recommended Training: | CVOICE Authorized Self-Study Guide CVOICE Cisco Voice over IP Official Course |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | Cisco 642-436 Sample Questions |
| Exam Way: | Online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | CCNA-level networking knowledge or equivalent experience; recommended CCNA certification |
| Official Syllabus URL: | https://www.cisco.com/c/en/us/training-events/training-certifications/exams/retired/642-436.html |
Cisco 642-436 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Dial Plan Implementation | 25% | - Dial plan verification and troubleshooting - Calling privileges and hunt groups - Numbering plan and dial peer concepts - Digit manipulation and path selection |
| VoIP Fundamentals | 20% | - Signaling protocols: H.323, SIP, MGCP, SCCP - RTP, RTCP, cRTP media transport - Voice digitization, packetization and codecs - QoS requirements for voice traffic - Traditional telephony and VoIP architecture |
| Gatekeeper Deployment | 15% | - Gatekeeper redundancy and verification - Zone management and endpoint registration - Call admission control and routing - Gatekeeper functions and components |
| IP-to-IP Gateway (Cisco UBE) | 15% | - Call routing and admission control - Protocol interworking and media flow - IP-to-IP gateway functionality - Configuration and verification |
| Cisco IOS Gateways | 25% | - DTMF relay, fax and modem support - Gateway components and DSP resources - Analog and digital voice interfaces - PSTN and PBX integration |
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