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ITU-T Q.1551 (06/1997)

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该建议书标题尚未译为中文。
该建议书标题尚未译为中文。
Citation: https://handle.itu.int/11.1002/1000/4065
Series title:
Approval date: 1997-06-05
Approval process:TAP
Status: Superseded
Observation:Deleted in October 2022 as a consequence of the suppression of the Universal Personal Telecommunication (UPT) service
Maintenance responsibility: ITU-T Study Group 11
Further details: Patent statement(s)