AT&T Merlin Legend 10BS User Manual page 170

Features
To Program a Camp-On Button
1. Label the button to be programmed as Camp-On.
2. Slide the T/P switch to P.
3. Press the button you labeled Camp-On.
4. Dial
5. Slide the T/P switch to the center position.
To Use Camp-On
1. If you try to transfer a call and reach a busy extension,
or if the person receiving the transfer wants to wait
before taking the call, do one of the following:
57.
Press the programmed Camp-On button.
Press the programmed Feature button and
dial 57.
5-93
Transfer