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Updated: Jul 30, 2026
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Simens STI-400 Exam Overview:
| Certification Vendor: | Siemens (Siemens Enterprise Communications / Unify) |
| Exam Name: | Siemens HiPath 4000 STI-400 Certification Exam |
| Exam Number: | STI-400 |
| Related Certifications: | Siemens HiPath 3000 Certification Unify OpenScape Voice Certifications |
| Available Languages: | English |
| Pre Condition: | Basic knowledge of enterprise telephony systems and IP networking is recommended. |
Simens STI-400 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Call Control and Features | - Class of service and user profiles - Supplementary services (transfer, forwarding, conferencing) - Call routing and number planning |
| HiPath 4000 System Architecture | - Core components and platform design - Network integration overview - Scalability and distributed architecture concepts |
| System Administration and Maintenance | - Software upgrades and lifecycle management - Configuration management tools - Fault management and diagnostics |
| Networking and Integration | - Interoperability with PSTN and SIP trunks - LAN/WAN integration for voice systems - QoS and traffic prioritization |
| Voice over IP and Signaling | - SIP fundamentals and call flows - H.323 and legacy protocol interworking - Media gateways and codec handling |
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