Public Switched Telephone Network (PSTN)
(เครือข่ายโทรศัพท์สาธารณะแบบสลับสาย (PSTN))
Definition
Public Switched Telephone Network (PSTN) (เครือข่ายโทรศัพท์สาธารณะแบบสลับสาย (PSTN)) Hard Skill
Public Switched Telephone Network (PSTN) is the traditional circuit-switched telephone network system that enables voice communication through established physical lines and switches.
Expertise Level
Level 1
Basic
1. Understands the basic concept and purpose of PSTN.
2. Can identify major components such as telephone lines, switches, and exchanges.
3. Aware of how voice signals are transmitted over PSTN.
Level 2
Intermediate
1. Can explain how circuit switching operates within PSTN.
2. Understands the role of signaling protocols and how call setup is managed.
3. Able to troubleshoot common connectivity and call quality issues on PSTN.
Level 3
Advanced
1. Can design and optimize PSTN infrastructure including exchanges and transmission lines.
2. Understands integration of PSTN with modern technologies like VoIP and mobile networks.
3. Able to analyze and resolve complex network issues and implement PSTN upgrades.
