TIA EIA-777-A-DRAFT-SP4078RV(PN4078RV).doc

PN-4078RV (To be published as TIA/EIA-777A) Telecommunications Telephone Terminal Equipment Caller Identity and Visual Message Waiting Indicator Equipment Performance Requirements Formulated under the cognizance of TIA Subcommittee TR-41.3 Analog and Digital Wireline Terminals With the approval of TIA Engineering Committee TR-41 Telecommunication Equipment Requirements This page intentionally left blank. 11 TABLE OF CONTENTS 1SCOPE.9 2NORMATIVE REFERENCES. 9 3ABBREVIATIONS, ACRONYMS, AND DEFINITIONS. 10 3.1ABBREVIATIONS AND ACRONYMS. 10 3.2DEFINITIONS. 10 4TECHNICAL CRITERIA FOR CPE. 12 4.1MANDATORY, RECOMMENDED, AND PERMISSIVE CRITERIA. 12 5TYPE 1 CPE GENERAL. 12 5.1TYPE 1 CPE FUNCTIONALITY. 12 5.2TYPE 1 PROTOCOL. 12 5.2.1FSK following Power Ringing. 12 5.2.2FSK without Power Ringing. 13 5.2.3Time-out and Resetting Capabilities . 13 5.2.4Type 1 Message Preamble. 14 5.2.4.1Channel Seizure Signal . 14 5.2.4.2Mark Signal. 14 5.2.4.3Binary & ASCII encoding . 14 5.2.5Message Formats. 14 5.2.5.1Message Types. 15 5.2.5.2Message Length . 15 5.2.5.3SDMF Message Type . 15 5.2.5.3.1SDMF Calling Number Parameter. 15 5.2.5.3.2SDMF Reason for Absence of Calling Number. 17 5.2.5.4MDMF Message Format . 17 5.2.5.4.1Parameter Types. 17 5.2.5.4.2Parameter Length . 18 5.2.5.4.3Parameter Field Definitions . 18 5.2.5.4.3.1MDMF Date and Time Parameter. 18 5.2.5.4.3.2MDMF Calling Number Parameter. 19 5.2.5.4.3.3MDMF Dialable Directory Number Parameter. 19 5.2.5.4.3.4MDMF Reason for Absence of Directory Number Parameter . 20 5.2.5.4.3.5MDMF Calling Name Parameter. 21 5.2.5.4.3.6MDMF Reason for Absence of Name Parameter. 21 5.2.5.4.3.7MDMF Call Qualifier Parameter . 22 5.2.5.4.3.8Reason for Redirection Parameter (Reserved) . 23 5.2.5.5Visual Message Waiting Indicator . 23 5.2.5.5.1SDMF VMWI Parameter. 23 5.2.5.5.2MDMF VMWI Parameter . 23 5.2.5.6Mark Bits . 24 5.2.5.7Checksum. 24 5.2.5.8Markout . 24 5.2.6Exception Handling. 24 5.2.6.1Checksum Error . 24 5.2.6.2No Data Detected. 24 2 5.2.6.3Out of Range data. 24 5.3PHYSICAL LINE INTERFACE. 25 5.3.1FSK Signal Properties. 25 5.3.1.1Frequency. 25 5.3.1.2Signal Levels. 25 5.3.1.3Type 1 FSK Signal Level Detection Threshold . 25 5.3.1.4FSK Twist. 25 5.3.1.5Baud Rate. 26 5.3.2Impairments. 26 5.3.2.1Single Tone Metallic Noise during FSK. 26 5.3.2.2Single Tone Metallic Noise before and after FSK. 27 5.3.2.3Type 1 - Echo Noise . 27 5.3.2.4Signal Dropouts During Channel Seizure . 27 5.3.2.5Immunity To Open Switching Intervals (OSIs) And Line Reversals. 28 5.3.2.6TYPE 1 OSI and Line Reversal Immunity. 28 5.3.3Type 1 DC operating Conditions. 28 5.3.4Test Matrix for the FSK Signal Properties, Including Multiple Impairments.28 6TYPE 2 PROTOCOL. 35 6.1GENERAL. 35 6.1.1Type 2 CPE. 35 6.2FUNCTIONALITY. 35 6.2.1Type 2 Call Waiting Caller ID. 35 6.2.2CAS Detection. 36 6.2.2.1CAS Detector Performance Recommendations . 36 6.2.2.2CAS Recognition . 37 6.2.2.2.1CAS Recognition Parameters. 37 6.2.2.2.2CAS Recognition Test Matrix. 37 6.2.2.3Talkdown Performance Parameters. 41 6.2.2.4Talkoff Performance Parameters . 41 6.2.2.5CAS Check Muting . 42 6.2.3CAS-ACK Handshake . 43 6.2.3.1Line and CPE States . 43 6.2.3.2CAS-ACK Handshake Protocol. 43 6.2.3.3ACK Signal Generation . 46 6.2.3.4Voicepath Mute Control. 46 6.3TYPE 2 MARK SIGNAL. 46 6.4PHYSICAL LINE INTERFACE. 46 6.4.1FSK Signal Properties. 46 6.4.1.1Frequency. 46 6.4.1.2Type 2 FSK Signal Level Detection Threshold . 47 6.4.1.3FSK Twist. 47 6.4.1.4Baud Rate. 47 6.4.2Impairments. 47 6.4.2.1Single Tone Metallic Noise . 47 6.4.2.2Immunity To Open Switching Intervals (OSIs) And Line Reversals. 48 6.4.2.3TYPE 2 OSI and Line Reversal Immunity. 48 6.4.3TYPE 2 DC Operating Range . 48 6.4.4Test Matrix for the FSK Signal Properties, Including Multiple Impairments.49 33 7TYPE 2.5 PROTOCOL . 55 7.1GENERAL. 56 7.1.1Type 2.5 CPE . 56 7.2FUNCTIONALITY. 56 7.2.1Type 2.5 Call Waiting Caller ID with Disposition . 56 7.3TYPE 2.5 MARK SIGNAL. 56 7.3.1CWD Options. 56 7.3.1.1Answer . 56 7.3.1.2Hold . 56 7.3.1.2.1Hold Return. 56 7.3.1.2.2Hold Drop . 56 7.3.1.2.3Conference . 56 7.3.1.3Forward . 56 7.3.1.4Announcement. 57 7.3.1.5Drop . 57 7.3.1.6Conference . 57 7.3.1.6.1Drop First. 57 7.3.1.6.2Drop Last . 57 7.3.2CWD Option Signals. 57 7.3.2.1CWD Flash Signal. 57 7.3.2.2CWD DTMF Signal. 57 7.3.2.3CWD Option Signal Timing . 57 7.3.3Voicepath Mute Control During CWD Option Signaling . 58 8ADJUNCT SERIES IMPEDANCE REQUIREMENTS. 59 8.1AC IMPEDANCE. 59 8.2DC RESISTANCE. 59 ANNEX A INFORMATIVE REFERENCES. 60 ANNEX B INFORMATIVE METHOD FOR RTF INTER-CPE SIGNALING.61 1.1INTER-CPE SIGNALING. 61 1.1.1Request-to-Flash Signaling. 61 1.1.1.1Request-to-Flash Signal Generation . 61 1.1.1.2Request-to-Flash Signal Detection and Response. 63 ANNEX C INFORMATIVE CALCULATIONS . 65 ANNEX D EXAMPLES OF STEP-LIKE VOLTAGE CHANGES. 67 4 LIST OF FIGURES Figure 1 Timing for FSK following Power Ringing. 13 Figure 2 SDMF and MDMF Formats. 15 Figure 3 - SDMF Calling Number. 17 Figure 4 - MDMF Date and Time Parameter . 19 Figure 5 - MDMF Calling Number Parameter . 19 Figure 6 - DDN Parameter . 20 Figure 7 - MDMF Reason for Absence of Directory Number Parameter. 21 Figure 8 - MDMF Calling Name Parameter. 21 Figure 9 - MDMF Reason for Absence of Name Parameter. 22 Figure 10 - MDMF Call Qualifier Parameter. 23 Figure 11 - SDMF Visual Message Waiting Indicator Parameter . 23 Figure 12 - MDMF Visual Message Waiting Indicator Parameter. 24 Figure 13 CAS-ACK Handshake Diagram. 45 Figure 24 - CWD State Diagram. 58 Figure 25 - CWD Signaling Timing Diagram . 59 Figure 26 - CPE State Generating RTF, Multiple CPE Off-Hook, Successful Synchronized Flash.61 Figure 27 - Line State During RTF, Multiple CPE Off-Hook, Successful Synchronized Flash.62 Figure 28 - Line State During RTF, Single CPE Off-Hook. 62 Figure 29 - CPE State Generating RTF, Multiple CPE Off-Hook, And Unsuccessful RTF.62 Figure 30 - Line State During RTF, Multiple CPE Off-Hook, And Unsuccessful RTF .63 Figure 31 - CPE State Detecting & Responding to an RTF, Successful Synchronized Flash.63 Figure 32 - Line State During RTF, Multiple CPE Off-Hook, Successful Synchronized Flash.63 Figure 33 - CPE State Detecting & Responding to an RTF, Unsuccessful RTF.64 Figure 34 - Line State During RTF, Multiple CPE Off-Hook, Unsuccessful RTF .64 55 LIST OF TABLES Table 1 - Message Type Values . 15 Table 2 - Parameter Type Values.