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What's
the AMR? Which phones are able to play AMR files
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AMR is a codec
offering a wide range of data rates, which was developed by the European
Telecommunications Standards institute (ETSI). The AMR codec is standardized
for GSM, and is also chosen by the Third Generation Partnership Project
(3GPP) as the mandatory codec for third generation systems. The philosophy
behind AMR is to lower the codec rate as the interference increases
and thus enabling more error correction to be applied. The AMR codec
is also used to harmonize the codec standards amongst different cellular
systems. Following phones are able to play AMR files
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