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Q.544 : Digital exchange measurements

Recommendation Q.544 (11/88)

Approved in 1988-11

Status : In force

Replaces Q.505 (1984) and Q.515 (1984)


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PDF Document PDF (acrobat)

133211 bytes 1990-01-04 E 12627 
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PDF Document PDF (acrobat)

180381 bytes 1990-01-04 S 12627 
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PDF Document PDF (acrobat)

187495 bytes 1990-01-04 F 12627 

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