Parking tone

I’m running the FreePBX distro FreePBX 13.0.192.8
Phones are Sangoma connected using PJSIP.
I use EPM to program the phones.
In the parking lot default lot I selected Pickup Courtesy Tone to NONE
Now I test it and the customer is saying they still get the tones on the extension side when parking the call.

Does anyone want to comment on this one?