Which are key devices in the SAFE VoIP large network campus server module? (Choose three)
A.
Layer 2 switch
B.
Call-processing manager
C.
NIDS appliance
D.
Proxy server
E.
IP phones
F.
Stateful firewall
Explanation:
The following are the key IP telephony devices in the large network campus server module:
1) Layer 3 switch
2) Corporate servers
3) Call-processing manager
4) Stateful firewall
5) Proxy Server
Reference: Cisco Courseware page 9-70