M00043152
New product
DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - PROCEDURE FOR CALL PROGRESS INDICATIONS
European Telecommunications Standards Institute
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Availability date: 11/06/2021
Foreword
0 Scope
0.1 Normative references
0.2 Abbreviations
1 General
2 Supervisory tones
2.1 General
2.2 Method
2.3 Standard tones
2.4 Applicability
2.5 Point of introduction
2.6 Comfort tones
3 Recorded announcements
Annex A (normative): Application of call control cause
information elements to supervisory tones
History
Defines requirements for call progress and related information to be provided to users of the GSM system.
Published | |
Document Type | Standard |
Status | Current |
Publisher | European Telecommunications Standards Institute |
Pages | |
ISBN | |
Committee | SMG 1 |