I’ve created my own over the phone letter to word substitution list. It’s simple, non-ambiguous, easy to spell. I was achieving following design goals:

– no acronyms
– short words
– common computing-related words
– no similar sounding in words
– less brand names is better
– less syllables is better
– fist letter of the word should sound in accordance to standalone alphabet letter
– i-e; c-s; v-w; j-g; m-n sounding confusion should be avoided

Analog
Band
Cable
Data
Ethernet
Fiber
Gigabit
Hacker
Identity
Jitter
Kilobit
loop
Modem
Network
Outage
Port
Query
Router
Simplex
Trunk
Uplink
Video
Wire
Xerox
Yahoo
Zero