1、 TIA-855-A June 2011Telecommunications Telephone Terminal Equipment Stutter Dial Tone Detection Device Performance Requirements ANSI/TIA-855-A-2011 APPROVED: JUNE 24, 2011 REAFFIRMED: JUNE 14, 2016 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through el
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23、E OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TIA-855-A i TABLE OF CONTENTS 1. SCOPE _ 1 2. NORMATIVE REFERENCES _ 2 3. ABBREVIATIONS, ACRONYMS, AND DEFINITIONS _ 3 3.1. ABBREVIATIONS AND ACRONYMS _ 3 3.2. DEFINITIONS _ 3 4. TECHNICAL CRITERIA F
24、OR SDT CPE _ 4 4.1. VOICEMAIL AND SDT _ 4 4.2. SDT SIGNALING PARAMETERS _ 4 4.3. AUTOMATIC STUTTER DIAL TONE DETECTION DEVICE _ 5 4.4. DISABLING SDT CHECKING _ 5 4.5. MULTIPLE SDT CPE INTERWORKING _ 5 4.6. LINE AND CPE STATES _ 6 4.7. GENERAL TEST CONDITIONS _ 6 4.8. EVENTS TRIGGERING AUTOMATIC SDT
25、CHECKING _ 6 4.9. IN-USE EVENT _ 7 4.10. IN-USE AND IDLE DC VOLTAGES _ 7 4.11. UNANSWERED RING EVENT _ 8 4.12. UNANSWERED RING EVENT TIMING _ 8 4.13. POWER RINGING PARAMETERS _ 9 4.14. AUTOMATIC SDT CHECK TIMING _ 9 4.15. INTERACTION OF AUTOMATIC SDT CHECKS _ 9 4.16. AUTOMATIC SDT CHECK _ 10 4.16.1.
26、 Automatic SDT Check Timing Parameters_ 10 4.16.2. Non-Blocking Of Dial Tone _ 11 4.16.3. Automatic SDT Detector Immunity to Noise _ 12 4.17. AUTOMATIC SDT CHECK SYNCHRONIZATION _ 12 4.18. INTERACTION WITH VMWI _ 12 4.19. INTERACTION WITH LINE IN-USE FEATURE _ 13 4.20. NON-AUTOMATIC SDT CHECK _ 14 4
27、.20.1. Verification of Non-Automatic Stutter Dialtone Detection _ 14 4.20.2. Non-Automatic Stutter Dialtone Detection Immunity To Interference _ 14 4.20.2.1. Immunity To Speech Interference _15 4.20.2.2. Immunity To DTMF and Pulse Dialing Signals _17 4.20.2.3. Immunity To SDT and DT Detection For An
28、 Incoming Call _17 ANNEX A (INFORMATIVE) ANSI/TIA-968-B-2009 (SUB-CLAUSE 5.1.7.3.2) STANDARD _ A ANNEX B (INFORMATIVE) VERIFICATION OF CPE NON-AUTOMATIC SDT CHECK CAPABILITY _ B ANNEX C (INFORMATIVE) CPE SDT ENABLE/DISABLE OPTION _ C TIA-855-A ii Table of Figures Figure 1 In-Use Event with Dial Tone
29、 . 7 Figure 2 In-Use Event without Dial Tone 7 Figure 3 Unanswered Ring Event Timing . 9 Figure 4 Automatic SDT Check Timing with Dial Tone . 11 Figure 5 Automatic SDT Check Timing with Dial Tone . 11 Table of Tables Table 1 SDT/DT Parameters 4 Table 2 Required DC Operating Parameters 8 Table 3 Exte
30、nded DC Operating Parameters . 8 Table 4 SDT/DT Immunity to Noise . 12 Table 5 SDT Talkoff Performance Requirements . 15 Table 6 DT Talkoff Performance Requirements 15 TIA-855-A iii FOREWORD (This foreword is not part of this Standard.) This document is a TIA Telecommunications standard produced by
31、Working Group TR-41.3.2 of Committee TR-41. This standard was developed in accordance with TIA procedural guidelines, and represents the consensus position of the Working Group and its parent Subcommittee TR-41.3, which served as the formulating group. This document includes annexes which are inform
32、ative only, and are not considered a part of this standard The leadership of the TR-41.3.2 Stutter Dial Tone Detection Device Performance Working Group (Chair: James Bress, AST Technology Labs, Inc.) acknowledges the written contributions provided by the following individuals in the development of t
33、his standard. Organization Representative Previous Version TIA-855-A AST Technology Labs James Bress Editor Notify Corp. Greg Neal Editor David Stenner Advent Instruments Inc. Clint Pinkham Atlinks Ken MacDonald Microtronix Philip Ching Mitel Corp. Cliff Chammey Sprint Amar Ray Sprint Stan Peitrowic
34、z Telcordia Technologies Al Baum Uniden Stephen Whitesell Vtech Communications Steve Kropp VTech Engineering Suggestions for improvement of this standard are welcome. They should be sent to: Telecommunications Industry Association Engineering Department Suite 300 250 Wilson Boulevard Arlington, VA 2
35、2201 ( http:/www.tiaonline.org ) TIA-855-A 1 Telephone Terminal Equipment Stutter Dial Tone Detection Device Performance Requirements 1. SCOPE This document provides specifications for Customer Premises Equipment (CPE) devices designed to automatically detect stutter dial tone (SDT) on an analog tel
36、ephone line. TIA-968-B includes regulatory requirements related to automatic stutter dialtone detection devices for connection to the network. This standard includes criteria to meet the TIA-968-B requirements and additional requirements for the performance of these devices. This document also provi
37、des specifications for CPE regarding the interaction between Stutter Dial Tone Detection and Visual Message Waiting Indication features. TIA-855-A 2 2. NORMATIVE REFERENCES The following standards contain provisions, which, through reference in this text, constitute provisions of this standard. At t
38、he time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. ANSI and TIA maintain registers of c
39、urrently valid national standards. ANSI/TIA-470.210-D-2010, Telecommunications - Telephone Terminal Equipment Resistance and Impedance Performance Requirements for Analog Telephones ANSI/TIA-470.220-C-2004, Telecommunications - Telephone Terminal Equipment Alerter Acoustic Output Performance Require
40、ments for Analog Telephones ANSI/TIA-777-A-2003, Telecommunications Telephone Terminal Equipment Caller Identity and Visual Message Waiting Indicator Equipment Performance Requirements ATIS-0600401.2006, Telecommunications - Network-to-Customer Installation Interfaces - Analog Voicegrade Switched Ac
41、cess Lines Using Loop-Start and Ground-Start Signaling ATIS-0600401.02.2000 (R2010), Telecommunications - Network-to-Customer Installation Interfaces -Analog Voicegrade Switched Access Lines with Distinctive Ringing Features ATIS-0600401.03.1998 (R2010), Telecommunications Network-to-Customer Instal
42、lation Interfaces Analog Voicegrade Switched Access Lines with Calling Number Delivery, Calling Name Delivery, or Visual Message-Waiting Indicator Features Telcordia Technologies, SR-3004 Issue 2, January 1995, Testing Guidelines for Analog Type 1, 2, and 3 CPE as Described in SR-INS-002726 Telcordi
43、a Technologies, SR-TSV-002476, Issue 1, December 1992 (plus bulletin No 1, September 1993), Customer Premises Equipment Compatibility Considerations for the Voiceband Data Transmission Interface. TIA-855-A 3 3. ABBREVIATIONS, ACRONYMS, AND DEFINITIONS 3.1. ABBREVIATIONS AND ACRONYMS For the purposes
44、 of this Standard, the following abbreviations and acronyms apply. ASL Active Speech Level CAS CPE Alerting Signal CO Central Office (Used broadly to describe the telephone switch connected to a subscribers line) CPE Customer Premises Equipment CPT Call Progress Tone DT Dial Tone (regular continuous dial tone) FSK Frequency Shift Keying SDT Stutter Dial Tone SNR Signal to Noise Ratio VMWI Visual Message Waiting Indicator 3.2. DEFINITIONS For the purposes of this Standard, the foll
