How to defeat unidirectional sound when calling from one ext to another ext on the same server?

Question

Asterisk

Raised FreePBX in docker. Started several ext.
Phones are stuck.
The echo test works with both - RTP goes in both directions and everything is smooth there.
But when you call, there are only two RTP streams: S
From the receiving call to the server and from the server to the caller: S
WTF and how to win

Answer 1

directmedia=no