G.711

g.711 is an ITU-T recommendation for an audio codec for telephony.

 Also known as: 

g.711 mu-law which is a recommendation for the North American region.

g.711 u-law which is a recommendation for the Non-North American regions.

Relevant NENA Documents

NENA-STA-010, Detailed Functional and Interface Standards for the NENA i3 Solution

External References

ITU-T Telecommunication Standardization Sector