Every VoIP endpoint must select one specific codec. Which of these codecs is the mandatory codec?

The correct answer is D. G.711. G.711 is the mandatory baseline codec that every VoIP endpoint must support, as defined by ITU-T standards. It ensures interoperability between all compliant VoIP devices. G.711 uses PCM (Pulse Code Modulation) encoding at 64 kbps and comes in two variants: G.711 μ-law (North…

Endpoints

Question

Options

AG.729
BG.728
CG.722
DG.711
EH.264

How the community answered

(34 responses)

B
3% (1)
C
3% (1)
D
88% (30)
E
6% (2)

Explanation

G.711 is the mandatory baseline codec that every VoIP endpoint must support, as defined by ITU-T standards. It ensures interoperability between all compliant VoIP devices. G.711 uses PCM (Pulse Code Modulation) encoding at 64 kbps and comes in two variants: G.711 μ-law (North America and Japan) and G.711 A-law (Europe and elsewhere). While other codecs like G.729 (8 kbps, compressed) and G.722 (wideband HD voice) are widely used, they are optional. H.264 is a video codec, not an audio codec. Because G.711 is the common denominator, all endpoints fall back to it when a shared codec cannot be negotiated.

Topics

#G.711#codec#VoIP standards#mandatory codec

Community Discussion

No community discussion yet for this question.

Full 300-070 Practice