Totally unrelated to fish
The other day a co-worker of mine called my multi-line phone from another multi-line phone, and they are identical, but instead of making a normal phone call, his call made MY PHONE answer and go straight to speaker phone.
Meaning, he called me from phone 1, and my phone, phone 2, answered his call, and automatically answered it on speaker phone. It didn't even ring.
HOW DO YOU DO THIS?? He won't tell me how and I am curious as to how it works. In case you're wondering, they are the model was the standard multi-line phone that Safeway Stores, Vons, and Kroger use.