You have just completed a comprehensive study of the traffic patterns in your network. As you review the results, you discover a remote office that has had any particular problems. However, the volume of voice quality related tickets has increased in the last two weeks. Which two possible causes would the traffic study show? (Choose two)

A.
The route to this office is suboptimal and during peak traffic may cause a delay in packet delivery

B.
The circuit to this office has excessive errored seconds continuously through the day

C.
The circuit to this office is significantly oversubscribed

D.
QoS is missing from the circuit configuration to this site.

E.
The circuit to this location experiences brief periods of congestion and excessive retransmits during these periods