Hi Viet, If you have configured all required ports in your FW for PCA and still not working, then you try those steps to verify/troubleshoot. 1. You can verify your UCM HTTP(s)/SNMP/JTAPI credentials in Manage Credentials UI and see if any credential...

Hi, What PCA version & SP you are running? Have you added PCA as a Billing Server in UCM? Also check if UCM Publisher is listed in CDR Source Setting of PCA. Regards, Kevin Nguyen

Hi, Have you set up alarm and notification for the device(s)? There is a "device unregistered" alarm set.Alarm & Event Setup > Notification > Assurance Notification Criteria Regards,/Kevin 

Hi,You should be able to see 2nd extension in Endpoint Diagnostic under Phone Lines column (DN1, DN2).Regards,/Kevin

Hi, PCA 9.5 is out of date now. I suggest to give a fresh start with 10.6. Regards,/Kevin