Leo Simmons

Useful Links & Resources

A collection of technical resources, tools, and personal links that I find valuable.

Personal & Professional

• ION16 Identity Provider
• QRZ.com Profile - M7LPT

Cisco CUCM Resources

• Cisco CUCM Documentation
• CUCM System Configuration Guide
• SIP Protocol Documentation

Amateur Radio Resources

• QRZ.com Callsign Database
• EchoLink Internet Radio
• Brandmeister DMR Network
• Radio Society of Great Britain
• American Radio Relay League

Technical Tools & Utilities

• Wireshark Network Analyzer
• Nmap Network Scanner
• GNS3 Network Simulator
• PuTTY SSH Client

Learning Resources

• Cisco Live Sessions
• Cisco Learning Network
• International Telecommunication Union
• RFC Standards