Using technology developed jointly by VoiceAge and Nokia, G.722.2 is the first codec to be adopted as a standard for both wireless and wireline services. It was standardized first by ETSI/3GPP in December 2001 as AMR-WB (Adaptive Multi-Rate Wideband) and then approved by ITU-T in January 2002 as the G.722.2 recommendation.
Supporting a wide range of bit rates from 6.6-23.85 kbps, AMR-WB/G.722.2 was adopted at ITU for teleconferencing
and voice-over-packet applications. It is the mandatory standard codec for wideband speech in GSM and WCDMA networks and is also included in the CableLabs® PacketCable™ 2.0 specification.
For implementations of this codec on
other platforms, please contact sales@voiceage.com
It also interoperates with VMR-WB, the latest 3GPP2 wideband speech standard, which is mandatory for cdma2000® wideband telephony and multimedia messaging services.
G.722.2/AMR-WB supports dynamic adaptation to network conditions, using lower bit rates during network congestion or degradation while preserving audio quality.
