TR 101 959 : 1.1.1
Current
The latest, up-to-date edition.
ACCESS AND TERMINALS (AT); RINGING WITHOUT DC FOR TERMINAL EQUIPMENT (TE), TERMINAL SUPPORT INTERFACES (TSI) AND LOCAL EXCHANGE INTERFACES (LEI)
Hardcopy , PDF
English
Intellectual Property Rights
Foreword
Introduction
1 Scope
2 References
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 Ringing without DC
5 Requirements for the Terminal Support Interface (TSI) and the
Local Exchange Interface (LEI)
5.1 Ringing signal
5.2 Ringing drive capability
5.3 Recognizing "off-hook" (ring trip)
6 Requirements for Terminal Equipment (TE)
6.1 General considerations for TE
6.2 On-hook requirements
6.3 Off-hook requirements
History
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