Refer to the exhibit. A customer wants the SIP 200 OK shown to advertise codecs in the following order: - G.729 - G.711u - G.711a - G.723 - G.728 After correcting the codec preferences. What should…

The correct answer is D. m=audio 0 RTP/AVP 18 0 8 4 15. You could probably get thru the test just knowing the payload IDs for G.711u being 0 and G.729 https://datatracker.ietf.org/doc/html/rfc3551#page-32

Protocols and Endpoints

Question

Refer to the exhibit. A customer wants the SIP 200 OK shown to advertise codecs in the following order:

G.729
G.711u
G.711a
G.723
G.728

After correcting the codec preferences. What should the audio payload show in the SIP Traces?

Exhibit

Options

Am=audio 0 RTP/AVP 0 8 18 4 15
Bm=audio 0 RTP/AVP 4 0 8 18 15
Cm=audio 0 RTP/AVP 0 18 8 4 15
Dm=audio 0 RTP/AVP 18 0 8 4 15

How the community answered

(41 responses)

A
7% (3)
B
5% (2)
C
2% (1)
D
85% (35)

Explanation

You could probably get thru the test just knowing the payload IDs for G.711u being 0 and G.729 https://datatracker.ietf.org/doc/html/rfc3551#page-32

Topics

#SIP#SDP#Codec Preference#RTP Payload Types

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