be introducing AMR-WB on its network in 2010. In France Orange S.A. and SFR are using AMR-WB format on their 3G+ networks since the end of summer 2010. WIND Mobile in Canada launched HD Voice (AMR-WB) on its 3G+ network in February, 2011. WIND Mobile also announced that several handsets will support HD Voice (AMR-WB) in the first half of 2011, with the first one being Alcatel Tribe. In January 2013, T-Mobile became the first GSM/UMTS based network in the US to enable AMR-WB. In Feb 2013, Chunghwa Telecom became the first GSM/UMTS based network in Taiwan to enable AMR-WB. In August 2013 the AMR-WB standard was introduced in Ukraine by Kyivstar. Nokia developed the VMR-WB format for CDMA2000 networks, which is fully interoperable with 3GPP AMR-WB. AMR-WB is also a widely adapted format in mobile handsets for ringtones. The AMR wideband speech format shall be supported in 3G multimedia services when wideband speech working at 16 kHz sampling frequency is supported. This requirement is defined in 3GPP technical specifications for IP Multimedia Subsystem (IMS), Multimedia Messaging Service (MMS) and Transparent end-to-end Packet-switched Streaming Service (PSS). In 3GPP specifications is AMR-WB format also used in 3GP container format. Licensing G.722.2 is licensed by VoiceAge Corporation. Tools For encoding and decoding AMR-WB, an open-source library named OpenCORE exists. The OpenCORE codec can be used in ffmpeg. For encoding, another open-source library exists as well, provided by VisualOn. It is included in the Android mobile operating system. See also Enhanced Voice Services (EVS) Adaptive Multi-Rate (AMR) Extended Adaptive Multi-Rate – Wideband (AMR-WB+) Half Rate Full Rate Enhanced Full Rate (EFR) G.722 G.722.1 3GP Comparison of audio coding formats RTP audio video profile Wideband audio References External links ITU-T Recommendation G.722.2 (AMR-WB) – technical specification Adaptive Multi-Rate – Wideband (AMR-WB) speech codec; Transcoding functions; 3GPP TS 26.190 – 3GPP technical specification Adaptive Multi-Rate – Wideband (AMR-WB) speech codec; Voice Activity Detector (VAD); 3GPP TS 26.194 – 3GPP technical specification Adaptive Multi-Rate – Wideband (AMR-WB) speech codec; General description; 3GPP TS 26.171 – 3GPP technical specification 3GPP codecs specifications; 3G and beyond / GSM, 26 series – RTP Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs – The Codecs Parameter for "Bucket" Media Types Deep Inside the Network, Episode 2: AMR-WB – Skype-like Audio Quality for Mobile Networks Wideband Speech Coding Standards and Applications