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Active standard | Published: 15/09/1995
ETSI ETR 207-ed.1
Public Switched Telephone Network (PSTN); Alternative sender for multifrequency signalling system to be used for push-button telephones [CEPT Recommendation T/STI 46-04 E (1986)]
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Detail information
Designation: ETSI ETR 207-ed.1
Publication date: 15/09/1995
Pages: 17
Country: European technical standard
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