[Freeswitch-users] Freeswitch 1.8 mod_callcenter get CALL_REJECTED Originate Error

Hi, Currently, our Freeswitch 1.8 production server, frequently encounters CALL_REJECTED when mod_callcenter tries to originate the call to the agent. *Is there any clue you can suggest to debug this issue?* I am sure that the callee does not reject this call because mod_callcenter

can't even make the call to the agent (Callee).

The call would traverse like this: *DID Call via GSM Gateway > Freeswitch

(IVR Call > Callcenter-Queue > Agent)*

Any help would be really appreciated. Best regards, Chhorm Chhatra