*69: Activates the call return feature
From PhonePower Knowledge Base
Activates the Call Return Feature for the last incoming call.
Pick up the phone and press *69 # to redial the number of the last incoming call.
To use:
Pick up the Phone Power phone.
Once you hear a dial tone, dial *69 #.
The system will dial the phone number of the last person that called your Phone Power phone.
- Note - If the last call you received had their caller ID blocked, this feature will not work.