You are adding regions in Cisco Unified Communications Manager. Which codec(s) are selected when a call is placed if you set up the max audio bit rate to use 8 kbps?

G.722 is a wideband codec that typically operates at higher bit rates like 64 kbps or 48 kbps, not 8 kbps.

When the max audio bit rate in a Cisco Unified Communications Manager region is set to 8 kbps, the G.729 codec is the only standard option that fits this requirement. G.729 is a low-bandwidth codec that operates at 8 kbps, making it suitable for bandwidth-constrained links. This ensures calls within or between regions configured for this low bit rate will use G.729.

G.711ulaw operates at 64 kbps, which is much higher than the specified 8 kbps limit.

Both G.711ulaw and G.711alaw operate at 64 kbps, significantly exceeding the 8 kbps maximum audio bit rate.