Five users from a branch office and two users from headquarters frequently engage in conference
calls with each other. Their clients call in from the PSTN. WAN bandwidth is very limited.
Which solution reduces the WAN utilization of the five users from a branch office and two users
from headquarters in conference calls?
A.
Configure the hardware DSP resources in the branch and headquarters ISR gateways to work
together simultaneously in the same conference call.
B.
Have the users from the branch office initiate the conference call. Configure the branch office
phones in the MRGL to the branch office gateway resources.
C.
Have the users from the branch office initiate the conference call. MRGL configurations are not
required.
D.
Utilize the hardware conference resources in headquarters. Configure all phones in the MRGL
to the headquarters resources.