Is it okay to answer my own question?
Found answer here:
https://www.sundance-communications.../ubb/get_topic/f/11/t/000458.html#000000 Also, created my own version after going through it once:
__How to Change Phone Station Display Name__
Press
Intercom #621
* - show cursor
* - backspace
# - switch to numbers
For letters:
With cursor showing, Press letter you want. It will choose the first letter on that number. Press 0 repeatedly until is on letter you want.
Press 0 to get Q, Z, and some punctuation.
When Finished:
Press Spkr when done to stop. Press Int#621 again to see if it worked.