The SMC system administrator enabled the SC mandatory media routing policy on the SKC. The conference administrator John successfully booked the conference but all parties were unable to join the conference. Which of the following reasons could this fault occur?

The SMC system administrator enabled the SC mandatory media routing policy on the SKC. The conference administrator John successfully booked the conference but all parties were unable to join the conference. Which of the following reasons could this fault occur?
A . The terminal version is too old and the compatibility switch on the SMC is not turned on.
B . The party joining the conference is a soft terminal
C . License has no traversal traffic
D . No one answers at each terminal side

Answer: C