AT&T MERLIN LEGEND Analog Direct-Line Console Operator's Manual page 69

Using Features
To Use Camp-On with One-Touch Transfer with
Manual Completion
1. While active on a call, press DSS or Auto Dial button,
2.
Press programmed Camp-On button or press programmed
Feature button and dial 57. See Note.
3. Hang up, press Speakerphone, or use headset.
Notes:
Press # if you don't have a programmed Feature button.
You cannot use Camp-On if your system is programmed
for One-Touch Transfer with automatic completion.
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