## 3 Requirements

10.703GPPGSM Adaptive Multi-Rate Speech Codec (AMR)Project schedule and open issues for AMRTS

The AMR Performance Requirements are provided by [6]. The first set of performance requirements was approved by SMG#24 (Tdoc SMG 953/97), then revised by SMG#26 after the qualification phase, as defined in Tdoc SMG 369/98 [20]. The final set of performance requirements is included in Annex 1.

The AMR design constraints were gathered in a dedicated permanent document [9]. They are reproduced in Annex 2.