300-070 Question #414: Real Exam Question with Answer & Explanation

The correct answer is C: G.711. CUCM software conference bridges only support the G.711 codec, unlike hardware DSP-based bridges which can handle additional codecs.

Question

Which codec settings does Cisco Unified Communications Manager support for software conference bridges?

Options

AG.722
BG.723
CG.711
DG.729

Explanation

CUCM software conference bridges only support the G.711 codec, unlike hardware DSP-based bridges which can handle additional codecs.

Common mistakes.

A. G.722 is a wideband codec that requires hardware DSP resources and is not supported by software conference bridges in CUCM.
B. G.723 is not a supported codec for any CUCM conference bridge type, software or hardware.
D. G.729 is a compressed codec that requires DSP hardware for encoding and decoding, making it unavailable on software conference bridges.

Concept tested. CUCM software conference bridge codec support

Reference. https://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-callmanager/200443-CUCM-Conference-Bridge-Types-and-Configur.html

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