Which two codecs are supported by the Cisco Unified Communications Manager software conferencing media resource? (Choose two.)

The correct answer is C. wideband E. G.711. The Cisco IP Voice Media Streaming (IPVMS) application provides software-based conferencing in CUCM. The software conference bridge only supports G.711 (both mu-law and a-law variants) and wideband (G.722) codecs. It does NOT support compressed codecs such as G.729, G.723, or…

Cisco Unified Communications Manager (CUCM)

Question

Options

AG.723
BG.729
Cwideband
DGSM
EG.711

How the community answered

(24 responses)

B
4% (1)
C
88% (21)
D
8% (2)

Explanation

The Cisco IP Voice Media Streaming (IPVMS) application provides software-based conferencing in CUCM. The software conference bridge only supports G.711 (both mu-law and a-law variants) and wideband (G.722) codecs. It does NOT support compressed codecs such as G.729, G.723, or GSM. Those compressed codecs require hardware DSP resources (e.g., PVDM modules) to participate in a conference, because software conferencing lacks the processing power to handle codec transcoding. If a phone is using G.729 and a software conference bridge is the only resource, the call will fail or be rejected.

Topics

#software conferencing#codec#G.711#wideband

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