1.
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Clear description of the referenced document:
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Name:
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ETSI TS 126 448 V15.0.0 (2018-07)
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Title:
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Universal Mobile Telecommunications System (UMTS); LTE; Codec for Enhanced Voice Services (EVS); Jitter Buffer Management
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2.
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Status of approval:
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approved; in force
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3.
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Justification for the specific reference:
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P.VSQMTF uses the EVS jitter buffer implementation as described in this ETSI document. The reader of P.VSQMTF has to know that the implementation is in accordance with a standardized client.
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4.
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Current information, if any, about IPR issues:
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5.
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Other useful information describing the "Quality" of the document:
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This ETSI document is a technical specification providing a detailed description of the EVS jitter buffer behavior and management which is required to ensure VoLTE service performance.
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6.
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The degree of stability or maturity of the document:
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stable; in force since EVS codec release, 2015
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7.
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Relationship with other existing or emerging documents:
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8.
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Any explicit references within that referenced document should also be listed:
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[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications". /
[2] 3GPP TS 26.445: "Codec for Enhanced Voice Services (EVS); Detailed Algorithmic Description". /
[3] 3GPP TS 26.114: "IP Multimedia Subsystem (IMS); Multimedia telephony; Media handling and interaction". /
[4] 3GPP TS 26.071: "Mandatory speech CODEC speech processing functions; AMR speech Codec; General description". /
[5] 3GPP TS 26.171: "Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; General description". /
[6] 3GPP TS 26.442: "Codec for Enhanced Voice Services (EVS); ANSI C code (fixed-point)". /
[7] 3GPP TS 26.443: "Codec for Enhanced Voice Services (EVS); ANSI C code (floating-point)". /
[8] 3GPP TS 26.131: "Terminal acoustic characteristics for telephony; Requirements". /
[9] IETF RFC 4867 (2007): "RTP Payload Format and File Storage Format for the Adaptive MultiRate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs", J. Sjoberg, M. Westerlund, A. Lakaniemi and Q. Xie
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9.
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Qualification of
ETSI:
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ETSI is recognized under the provisions of ITU-T Recommendations A.5 and A.6. Qualifying information is on file at TSB.
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10.
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Other (for any supplementary information):
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None
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