Which three CLI commands are used when configuring H.323 call survivability for all calls? (Choose three.)
A. voice service voip
B. telephony-service
C. h323
D. call preserve
E. call-router h323-annexg
F. transfer-system
Which three CLI commands are used when configuring H.323 call survivability for all calls? (Choose three.)
A. voice service voip
B. telephony-service
C. h323
D. call preserve
E. call-router h323-annexg
F. transfer-system