Vertical Communications DSU II - Manual (Page 4)

NOTE: Throughout this book, all references to fixed buttons (keypad,
DSS/BLF, SPEAKER, HOLD, etc...) are printed in upper case, italic type; for
example, “PRESS
INTERCOM .”
All references to interactive buttons (which are used to make selections on
the speakerphone display) are printed in upper case, bold italic type; for
example, “SELECT
OPTIONS .”
Also, to eliminate confusion, the text of this guide instructs users to
“PRESS” fixed buttons of the telephone and “SELECT” interactive buttons
as in the examples above. Instructions to “DIAL” refer to numbers or
symbols on the keypad.
ii Single Line Proprietary Telephone Station User’s Guide
Contents GCA70-246