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BcN 서비스 품질관리 기술 및 정책 - KNOM

BcN 서비스 품질관리 기술 및 정책 - KNOM

BcN 서비스 품질관리 기술 및 정책 - KNOM

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해외 <strong>품질관리</strong> 사례 - French Telecom<br />

Voice 데이터<br />

Signalization CDR<br />

QoS CDR<br />

HGW<br />

xDSL모뎀<br />

AGW<br />

PSTN<br />

Switch<br />

CDR 데이터<br />

단말에서 측정한<br />

품질 정보 전송<br />

전화 단말 상의<br />

에이전트 기능 탑재<br />

품질측정<br />

시스템<br />

Probe ID<br />

Caller ID<br />

Called ID<br />

Date&Time of the Com.<br />

Duration of the Com.<br />

CODEC<br />

Route<br />

Jitter<br />

Packet Loss Ratio<br />

One-way Delay<br />

Speech Quality CDR<br />

Noise level<br />

Speech Activity Ratio<br />

Speech Quality Score<br />

Number of degradations<br />

VoIP CDR 데이터에 포함된 음성품질 정보<br />

→ RFC 3611 : VoIP 메트릭 리포트 블럭<br />

Block time<br />

reserved<br />

Block length<br />

SSRC of source<br />

Loss rate<br />

Discard rate<br />

Burst density<br />

Gap density<br />

Burst duration<br />

Gap duration<br />

Round trip delay<br />

End system delay<br />

Signal level<br />

Noise level<br />

RERL<br />

Gmin<br />

R factor<br />

Ext. R factor<br />

MOS-LQ<br />

MOS-CQ<br />

RX config<br />

reserved<br />

JB nominal<br />

JB maximum<br />

JB abs max<br />

27

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