Which protocol is used for voice bearer traffic?

A.
MGCP

B.
RTP

C.
SCCP

D.
CDP

E.
ICMP

Explanation:

VoIP Control and Transport Protocols
A number of different protocols are used in a VoIP environment for call control, device
provisioning, and addressing.
Figure 14-15 shows those protocols focused on VoIP control and transport.