Which two VoIP protocols use SDP to describe streaming media sessions? (Choose two.)

A.
SCCP

B.
H.323

C.
SIP

D.
MGCP

E.
RAS

F.
cRTP

Explanation:
TheSession Description Protocol(SDP), defined in RFC 2327, describes the content
of sessions, including telephony, Internet radio, and multimedia applications. SDP includes
information about [8]:
+ Media streams:A session can include multiple streams of differing content. SDP currently defines
audio, video, data, control, and application as stream types, similar to the MIME types used for
Internet mail.
+ Addresses:SDP indicates the destination addresses, which may be a multicast address, for a
media stream.
+ Ports:For each stream, the UDP port numbers for sending and receiving are specified.
+ Payload types: For each media stream type in use (for example, telephony), the payload type
indicates the media formats that can be used during the session.
+ Start and stop times: These apply to broadcast sessions, for example, a television or radio
program. The start, stop, and repeat times of the session are indicated.
+ Originator: For broadcast sessions, the originator is specified, with contact information. This may
be useful if a receiver encounters technical difficulties.