Cisco 642-144 Exam Information and Actual Questions
- Exam Code/Number: 642-144
- Exam Name/Title: IP Telephony Express(IPTX)
- Certification Provider: Cisco
- Corresponding Certification: IP Communications
- Exam Questions: 75
- Updated On: Jul 21, 2026
642-144
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Cisco
642-144 Exam
IP Telephony Express(IPTX)
Cisco 642-144 Exam Overview:
| Certification Vendor: | Cisco |
| Exam Name: | Cisco IP Telephony Express (IPTX) |
| Exam Number: | 642-144 |
| Exam Format: | Multiple choice, Simulation-based questions (historically Cisco exam formats) |
| Available Languages: | English |
| Sample Questions: | Cisco 642-144 Sample Questions |
| Exam Way: | Proctored exam delivered via Pearson VUE (historical Cisco certification delivery method). |
| Pre Condition: | No formal prerequisite; CCNA-level networking knowledge recommended (historically aligned with Cisco voice fundamentals track). |
Cisco 642-144 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Voice Gateway Configuration | - POTS dial peers - VoIP dial peers - PSTN integration concepts |
| Topic 2: VoIP Protocols | - SIP fundamentals - SCCP (Skinny) protocol - MGCP overview - H.323 basics |
| Topic 3: Call Routing and Dial Plan | - Class of restriction concepts - Digit manipulation and translation rules |
| Topic 4: Voice Quality and Troubleshooting | - Common voice issues and diagnostics - QoS basics for voice traffic |
| Topic 5: Cisco IP Telephony Express Overview | - IP telephony architecture concepts - Cisco Unified Communications components overview |
| Topic 6: Cisco CallManager Express (CME) / IP Telephony Express | - Dial plan configuration - Basic configuration and deployment - Phone registration and endpoint management |
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