17.62. RCLS - Recalls to ATND suppressed in node without attendant
console 
Feature:
Recalls after hangup in consultation mode
Recalls after transfer of an internal or external line in dialing, calling or busy
status
if an external line is waiting
Function:
Every recall that can originate from an external held incoming or outgoing consultation
line is suppressed and immediately initiates the release of the whole line.
This function can be activated or deactivated with the COT parameter RCLS.
Device types:
Networking trunks, trunks for special equipment