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Standards Referenced in ITU-T Q.722

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ITU-T E.260 1993 Edition, 1993
Basic Technical Problems Concerning the Measurement and Recording of Call Durations

ITU-T E.260

1993 Edition, 1993

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Basic Technical Problems Concerning the Measurement and Recording of Call Durations
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ITU-T Q.101 1988 Edition, November 1988
FACILITIES PROVIDED IN INTERNATIONAL SEMI-AUTOMATIC WORKING

ITU-T Q.101

1988 Edition, November 1988

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FACILITIES PROVIDED IN INTERNATIONAL SEMI-AUTOMATIC WORKING
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ITU-T Q.35 1988 Edition, March 1998
Technical Characteristics of Tones for the Telephone Service -Series Q: Switching and Signalling - International Automatic and Semi-Automatic Working - Tones for Use in National Signalling Systems

ITU-T Q.35

1988 Edition, March 1998

Complete Document
 
Technical Characteristics of Tones for the Telephone Service -Series Q: Switching and Signalling - International Automatic and Semi-Automatic Working - Tones for Use in National Signalling Systems
Additional Comments:
X-REF ITU-T E.180
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