Which three commands are mandatory to implement SRST for five Cisco IP Phones? (Choose three.)
A. call-manager-fallback
B. max-ephones
C. keepalive
D. limit-dn
E. ip source-address
Which three commands are mandatory to implement SRST for five Cisco IP Phones? (Choose three.)
A. call-manager-fallback
B. max-ephones
C. keepalive
D. limit-dn
E. ip source-address