| ||
|
| ASCII Code Chart | Go-WWW |
| Telecommunications Management Network (TMN) Tutorial | Go-WWW | |
| ISO 3166-1 Code List | Go-WWW | |
| ASCII Table | Go-WWW | |
| RJ Jack Glossary | Go-WWW | |
| EE-535 Virtual Textbook: Telecommunications and Transmission Technologies | Go-WWW | |
| Signaling System 7 (SS7) Tutorial | Go-WWW | |
| Infomagic standards CD-ROM at scitsc.wlv.ac.uk | Go-WWW | |
| ||