I found the method.
1. Enable JTAPI DebugLog on the app server.
2. Open debug log, search "ds:X509Certificate".
3. Copy string in the <ds:X509Certificate> tag.
4. Paste string to text editor, and save as certificate file such as "after.crt".
5. Check expiration date of the certificate file.
This message was edited 1 time. Last update was at 07/12/2017 20:28:36