Protocol

G.711

PCMU · PCMA · μ-law · A-law

Lab ready Full lab

64 kb/s PCM audio codecs for telephony: μ-law (PCMU, North America/Japan) and A-law (PCMA, elsewhere) compress linear samples with logarithmic quantization. RTP static payload types 0 and 8 identify them in SDP. They remain the interoperability baseline for PSTN gateways.

Domains

Layers

presentation

Tags

codecpcmaudiopayload

Sources

ITU-T G.711
RFC 3551

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