What is required to effectively use the Cisco CTL client to activate security in an IP telephony network?
A. H.323 gateway
B. Security Tokens
C. IPSEC
D. Secure SRST
What is required to effectively use the Cisco CTL client to activate security in an IP telephony network?
A. H.323 gateway
B. Security Tokens
C. IPSEC
D. Secure SRST