Vertical Communications and FX Series - Manual (Page 65)

The following table details several unique dialing codes that are only
applicable to single line proprietary and industry-standard telephones.
Feature Enable Code
Pick Up Last Line ✳ 08
Broker’s Call ✳ 07
Speed Dial Access Code ✳ 01
Saved Number Redial ✳ 06
Dial Saved Number ✳ 09
TAP Dialing Code # #
GCA70–198 Quick Reference Guide
LCD Speakerphone User's Guide A – 5