In some call center, to provide better service qualify, supervisor would like to route new incoming calls to failover destination immediately if all agents are busy in call.
Yeastar S-Series IPPBX
Yeastar P-Series IPPBX
1. Access ssh of device
2. Create queues_custom.conf under /ysdisk/support/customcfg/ and enter below content, replace queue number 6400 accordingly.
leavewhenempty = paused,inuse,invalid
joinempty = inuse,ringing
3.support@IPPBX:~$ asterisk -rx 'module reload'
4. Create any extensions and delete it again, click on 'Apply' button