Originally Posted by
clubord
It’s no communication problem like someone else suggested upthread.
The “Flight Attendants take your jumpseats” and “Flight Attendants Check In” calls are procedures in force by flight ops to reduce the turbulence related injuries incurred by the flight attendants.
in my case it was a communication problem. I know it because I was in 1C and heard the FAs talk about it

The actually wrote a piece of paper and slipped it under the cockpit door.