Which factor determines codec selection for collaboration endpoints?

Which factor determines codec selection for collaboration endpoints?

• A. The color of endpoints.
• B. The time of day.
• C. Configured regions/codec preferences plus available bandwidth and endpoint capabilities.
• D. The type of certificate installed.

Answer: (C)

Codec selection hinges on a combination of configured regions and codec preferences, the available bandwidth on the call path, and what the endpoints themselves can support. Regions set which codecs are preferred for calls between locations, guiding the negotiation toward a codec that balances quality with network constraints. At the same time, each endpoint announces its supported codecs, so the negotiated choice must be common to both sides. If there’s ample bandwidth, the system may select a higher-quality codec; if bandwidth is limited, it will fall back to a narrower, more bandwidth-efficient codec. When no common codec exists, devices may use transcoding or degrade gracefully to the best compatible option. Other factors like endpoint color, time of day, or certificate type do not determine codec selection.

Codec selection hinges on a combination of configured regions and codec preferences, the available bandwidth on the call path, and what the endpoints themselves can support. Regions set which codecs are preferred for calls between locations, guiding the negotiation toward a codec that balances quality with network constraints. At the same time, each endpoint announces its supported codecs, so the negotiated choice must be common to both sides. If there’s ample bandwidth, the system may select a higher-quality codec; if bandwidth is limited, it will fall back to a narrower, more bandwidth-efficient codec. When no common codec exists, devices may use transcoding or degrade gracefully to the best compatible option. Other factors like endpoint color, time of day, or certificate type do not determine codec selection.