What is required for Cisco TelePresence Server to communicate with Cisco WebEx, using the PSTN?
A. Cisco TelePresence MCU 5300
B. Cisco 3420 ISDN Gateway
C. third-party interop key
D. Web Conferencing feature key
What is required for Cisco TelePresence Server to communicate with Cisco WebEx, using the PSTN?
A. Cisco TelePresence MCU 5300
B. Cisco 3420 ISDN Gateway
C. third-party interop key
D. Web Conferencing feature key