Your Manager asks you as the Lead Network Designer to give a status on the VOIP integration project.
Your Manager specifically asks what you need to replace the PBX. From the list below, what are you going to need to replace the PBX to roll out the VOIP solution? (Choose all that apply.)
A.
TCP/IP
B.
Cisco CallManager
C.
IPX/SPX compatible
D.
IP Telephones
E.
All of the answers
F.
Cat 4000’s