G.718 speech codec was standardized by ITU-T in 2008. The codec operates on each 20 ms frame of 16-bit speech signals sampled at 8 KHz or 16 KHz and generates a compressed bit-stream having bit-rates in the range of 8 – 32 kbps. The encoder has an embedded scalable structure producing a bit-stream structured in five layers corresponding to the bit-rates 8, 12, 16, 24, and 32 kbps respectively. The lower two layers use CELP algorithm to encode while the higher layers are based on overlap-add MDCT transform coding. The encoder supports an integrated DTX/CNG mode operation. When the bit-rate is limited to 12 kbps, the encoder provides an option for noise suppression, and a low-delay mode of operation. The codec also provides an alternative coding mode 12.65 kbps, inter-operable with AMR-WB (G.722.2) and VMR-WB codecs. The decoder supports an inherent packet loss concealment algorithm and is also capable of decoding all the operating modes of G.722.2 codec. The codec is targeted for telephony/streaming applications on fixed, wireless, and mobile networks.