TrixBox 2.2.4

I have configured the system and all seems to be working well with the exception of CONFERENCE.

Whenever I dial the conference number (6565) I am prompted for the PIN (1234).  When the PIN is entered, I get the message "THAT IS NOT A VALID CONFERENCE NUMBER".

I also noticed that the /usr/src/zaptel directory is missing.  Could this be a contributor to the problem I am experiencing?

Thanks in advance for your assistance.

Pablo