Which command is required when using a loopback interface for RTP?

Due to a shortage of physical interfaces on a device the administrator requires that a loopback for RTP is used.

Which command is required when using a loopback interface for RTP?
A . voice-class sip resources priority mode passthrough
B . voice-class sip bind control source-interface Loopback0
C . voice-class sip early-offer forced.
D . voice-class sip bind media source-interface Loopback0

View Answer

Answer: D