Unity Connection 10.5.2 failover doesnt work

[Mark Verwey]

Last weekend my CUC publisher went down, the subscriber should have taken over as the ports stayed registered and the configuration is a HA setup but for some reason until I rebooted the publisher none of my calls would answer unless someone picked the line ringing.  I guess you could call it dumb luck as I had been out late, I saw the RTMT alert and was able to reboot the server and no one was the wiser.  How do I fix this so that next time the server is supposed to fail over it does.

[devils_advocate]

On the configuration of the VM ports on your subscriber, do you have 'Answer Calls' enabled?

Telephony Integrations > Port

[Mark Verwey]

Yes, both the Publisher and Subscriber have the Answer Calls enabled.

[BradEast1 · Accepted solution]

Are the subscriber ports a member of the line group in CUCM?

[Mark Verwey]

That's what is missing, thanks for the help.  Now it should work as designed.

[BradEast1]

Awesome, thanks for the update. Please mark as helpful and/or resolved.