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� Home : ITU-T : Publications : Recommendations : E�Series : E.251 : E.251 (11/88)
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E.251�:�Old system for accounting in international telephony �

Recommendation E.251 (11/88)

Approved in 1988-11-25

Status : Withdrawn

E.251 was an alias name of ITU-T D.151. Only this alias name was suppressed. ITU-T D.151 remains valid
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