I-ETS 300 380 : MAR 95
Current
The latest, up-to-date edition.
UNIVERSAL PERSONAL TELECOMMUNICATION (UPT) - ACCESS DEVICES DUAL TONE MULTI-FREQUENCY (DTMF) SENDER FOR ACOUSTICAL COUPLING TO THE MICROPHONE OF A HANDSET TELEPHONE
12-01-2013
Foreword
1 Scope
2 Normative reference
3 Abbreviations
4 Transmission requirements
4.1 Signalling frequencies
4.2 Transmission levels
4.3 Duration
5 Test specification
5.1 General
5.2 Frequencies
5.3 Transmission levels
5.4 Duration
5.5 Unwanted frequency components
Annex A (normative): Test arrangement
A.1 IEC 318 coupler/flat plate arrangement
Annex B (informative): Comments on acoustic coupling
B.1 Output level
B.2 Unwanted signals
B.3 Test setup
B.4 Level difference
Annex C (informative): Bibliography
History
Mechanical and acoustical characteristics of a UPT DTMF access device which acoustically coupled to the microphone of a handset telephony terminal
| Committee |
TE 4
|
| DocumentType |
Miscellaneous Product
|
| PublisherName |
European Telecommunications Standards Institute
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| DIN V I-ETS 300380:1995-10 | Identical |
| PN I-ETS 300 380 : 2005 | Identical |
| ETR 176 : 20001 | TERMINAL EQUIPMENT (TE); INTERWORKING AND INTEROPERABILITY OF RETRIEVAL SERVICES AND AUDIOVISUAL SERVICES ON NARROW BAND NETWORKS |
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