Skip to main content
Dictionary
Store
Blog
World
Help
Advertise
Chat
System Status
Information Collection Notice
Trademark Concerns
reCAPTCHA Privacy
Terms of Service
reCAPTCHA Terms
Privacy Policy
Accessibility
Report a Bug
Data Request
Contact Us
Security
DMCA
© 1999–2026 Urban Dictionary ®
Mugs
Tees
Hoodies
Pro Customization
Create unique products with your own words and definitions
Preview
Personalize Your Design
Your Word
Your Definition
Public Switched Telephone Network PSTN is the oldest, slowest, and most common phone connection based on twisted-pair copper wires carrying analog data. This technology uses RJ-ll connectors. Computers require modems to convert digital signals from the computer to the anlog waveforms that travel across PSTN lines. PSTN phone lines take analog samples of sound 2400 times/second.
Text fits
Save
Cancel