When analyzing the WAN for IP Telephone deployment, you need to collect information from the WAN and LAN devices. You need to determine current Bandwidth usage before rolling out a solution. From the analysis you are performing, there are categories you can collect information from.
Select two from the list below.

A.
Device information, which includes router models, memory, CPU, interface card modules versions and software versions

B.
The serial numbers from the Meridian Phone System

C.
The existing WAN topology, which includes logical design information and bandwidth subscription rates

D.
LAN information as in the make and model of the Remote site closet Nortel equipment

E.
You need all theCiscoWorksserver configurations to make sure you can install Call Manager