Some of yours users report issues when they are dialing extensions located in other branch offices. Sometimes the calls are set up successfully, and sometimes users experience problems during call setup. Which two reasons for the issue are true? (Choose two)
A. Not enough bandwidth is available between the two locations and Automated Alternate Routing is disabled on this cluster.
B. The Partition that contains the called extensions is not assigned to the line or device CSS of the calling users.
C. A firewall rule blocks traffic between the branch offices so the call setup cannot be completed.
D. The called extension is used only on a device profile for extension mobility and the user has been authenticated to a second phone in a different branch so the calls are delivered randomly to only one of his phones.
E. The remote branch experiences WAN link outages and there is no Forward Unregistered Internal number configured for the remote directory number.
AE
Agree A,E
AE for me as well here
since when a firewall rule can cause sporadic calling issue???
I agree. I think A and E are correct. B and C are definitely incorrect.