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Sage 960B General Purpose IP Telephony Test Set December 2010

S age I n s t r u m e n t s. Sage 960B General Purpose IP Telephony Test Set December 2010. Sage Instruments. Established in 1984 Headquarters, Engineering and Manufacturing Facilities Freedom, CA R&D Facility Newberg, OR

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Sage 960B General Purpose IP Telephony Test Set December 2010

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  1. S age I n s t r u m e n t s Sage 960B General Purpose IP Telephony Test Set December 2010

  2. Sage Instruments • Established in 1984 • Headquarters, Engineering and Manufacturing Facilities Freedom, CA • R&D Facility Newberg, OR • Primary Focus: Testing Voice Centric Networks (with fax, video and in-band data)

  3. Product Overview • 960B IP Telephony Test Set • E1/T1, Analog and GigE interfaces • Packet Voice, Next Generation Test Set • Hybrid Network End-to-end testing, turn-up and troubleshooting

  4. 960B IP Telephony Portable Instrument Test Interfaces • Configurable Multi-Interface Test Instrument • Up to four T1/E1 (CAS & PRI-ISDN)[Term, Dual Mon, and Drop&Insert] • Two Ethernet 10/100 BaseT (SIP)[Half, Full, and Full Duplex Monitor] • Up to four 2-wire Analog ports (FXO) • Provides Physical Layers Metrics • Two 4-wire Analog ports (Dry) • Interface and Channel Selectable Audio Monitor and Talk (Mic & Spkr)

  5. What Degrades Voice Services? • Excessive compression by low-bit vocoders • Voice level too low/High • Excessive packet/cell/frame loss/slip • Excessive voice jitter (Jitter buffer resizing) • Excessive voice clippings (VADs) • Excessive noise (CNG) or not enough • Excessive delay • Echo

  6. IP Voice Processing Impairments Clarity Degradationand Delay QuantizationNoise Voice ClippingTone Detection Audio Signal Voice Compression CompressedVoice Frame PCM byte 10110010…….101 Line card: A/D, G.711Logarithmic encoding VAD 10110010 Silence Suppression DistortionNoise Forward Path IAD/IP PhoneCPE NoiseFidelity Delay IP Layer Packetization IP Header IP Data/payload NetworkRouters, Switches De-packetization,reassemble voiceframes, Lost/delayed packet handling PacketJitter Buffer IP Data/payload IP Header DelayIP PacketFragmentation Long DelayVoice jitterDiscarded Pkt Lost/ErroredFrame concealment Reverse Path Output Audio Signal Voice Decoder PCM stream POTS PCM Line Driver Audio Playout Unit 2-4 Wire Hybrid 10110010 Echo Canceller Comfort Noise Generator Gateway/ PBX On-Net EchoSource Off-Net NoiseLevel

  7. Next Generation Voice Processing Echo Canceller • The Voice Processing DSP core • Embedded in Gateways IADs and IP Phones • Supports a variety of real-time processing tasks for multiple channels Tone Detection CNG Dynamic Jitter Buffer Voice Processing DSP CODEC Packet Substitution VAD T.38 Fax

  8. VoIP 960B IP Telephony Test InstrumentApplications: Enterprise GW Turn-up • Gateway Pass Thru Transparency Testing • Test Cancellers • Verify In-band Data or T.38 Fax Relay • Voice Quality • DTMF Encoding/Decoding (E911 Testing) E1/T1 Analog 10/100 Multiple SIP Call(s) Multiple Calls EC IP PBX/TGW/IAD/IP Phone

  9. 960B TechnologyApplication: Lab Certification Enterprise Turn-up Troubleshooting • Access Gateway Test Configuration • Turn-up, and Cert Testing (SIP, RTP MON, TDM Call)‏ • Test Call Generation‏ • Voice Quality, Echo, Fax …… 2/4-Wire Analog Optional SAGE 925 HandheldDevice 10/100/1000 Supports E-model E1/T1 VoIP Network TGW IP Phone/ATA IP PBX

  10. 960B IP Telephony Test InstrumentApplications: Passive Monitoring & Troubleshooting • Troubleshooting Echo • Passively Monitor Echo, Audio Level, and RTP (G.711/G.729) • INMD ITU P.561 (Level & Delay) • Monitor 100’s channels simultaneously • PRI-ISDN, SIP, RTP, T.38, V.9x, T.30 Rx2 10/100 Rx1 Half/FullDuplexMonitor E1/T1 TDM IP PBX/TGW VoIP Network Talker Hybrid Echo Echo CO/Tandem

  11. 960B IP Telephony Test InstrumentTechnology • Provides End-to-End Voice Quality Characterization • Test the networks ability to transmit voice distortion free in “both directions” through gateways, IADs and IP Phones. [Includes P.862 Psychoacoustic Core] • Artificial Voice Test Signal (All Accents!) ITU P.50 STD MetricsListener Impact Voice Clarity (MOS,PESQ) Distortion, Packet Loss Voice Packet/Frame Slips Voice Gapping, Jerking Rnd Trp Delay Talk-over Audio Level Too Loud or Quiet Comfort Noise Too High or Too low Effective Bandwidth In-band data qualification Codec Type Detection Provisioned incorrectly Two-way SMOS & PESQ

  12. 960B IP Telephony Test InstrumentTechnology • Provides End-to-End Voice Quality Characterization • Allows operators to send generic audio file in both directions over analog interfaces PESQ File Director & Responder

  13. 960B IP Telephony Test InstrumentTechnology Continuous SMOS & PESQ • Provides End-to-End Voice Quality Characterization • Test the networks ability to transmit voice distortion free in through gateways, IADs and IP Phones. [P.862 Psychoacoustic Core] in a continuous mode • Artificial Voice Test Signal (All Accents!) ITU P.50 STD or send and receive waves files and perform post-test analysis.One-Way MetricsListener Impact Voice Clarity (MOS,PESQ) Distortion, Packet Loss Voice Packet/Frame Slips Voice Gapping, Jerking Audio Level Too Loud or Quiet Comfort Noise Too High or Too low

  14. 960B IP Telephony Test InstrumentTechnology • Comprehensive Voice Quality Performance test. • Enables field personnel to zero in on causes of poor voice quality. Considered the DS0 BERT test for VoIP! MetricsListener Impact Voice Frame Loss Event Count Distortion from Packet Loss +/- Frame Slip Event Count Voice Gapping and Jerking Voice Clipping Event Count Choppy Voice Noise Hit Event Count Impulse Noise During silence period Statistics provided for each event type Avr Burst Length (msec) Min/Max Burst length (msec) Percent of impairment over test duration (i.e. % packet loss) PVIT

  15. 960B IP Telephony Test InstrumentTechnology • Emulate Up to 120 Facsimile Transmitters and Receivers (T.30) • Certify and Stress Gateway/ATA for In-band Data Transparency • Terminate Fax on TDM, Packet, and Analog • Decodes V.21 (FSK) Two-way Fax Transmission • Support All Data Rates for V.17 V.29, V.27, V.22 BIS & V.34 (Mon Only) Fax Tx, Rx & mon

  16. 960B IP Telephony Test InstrumentTechnology T.38 Fax Relay Monitor and Emulator • Certify & Troubleshoot Fax over IP problems • Full Monitor and decode of T.38 Protocol • Emulate both near and Far T.38 servers (CPE or Gateway) • Orig/Terminate T.30 fax from the TDM or analog side(s) and Orig/Terminate with T.38 on Ethernet (SIP ) for wrap around testing.

  17. 960B IP Telephony Test InstrumentTechnology MoIP • Objectively Measures a Packet Network’s Ability to Carry Telephony Traffic including Voice, Data, and Fax. • Emulates Three Modes of Operation: Voice, Data, & Fax • MoIP sends Appropriate Priming Tones (i.e. CNG) to Provoke Tone Detection for Call Type ( Data Mode) • Send Pseudo Random Test Signal to Verify Data Mode Transparency (Essentially 64 KB/s) • Fax & Data modems use vulnerable FSK signaling (V.21) Data Frame LossFrame Jitter (+/-)Codec TypeRound Trip Delay Voice Audio LevelFrame LossFrame Jitter (+/-)Codec TypeRound Trip Delay Fax Frame LossFrame Jitter (+/-)Codec TypeRound Trip Delay

  18. 960B Technology E-MODEL • ITU G.107 Conversational Quality Test • Computational model for use in transmission planning • Packet Loss, Jitter Induced PL, Echo, Delay, Noise plus Service Type Degradation Factor • Provides R-Factor 1-100 and E-MOS of 1-5 • Sage’s E-Model is calculated with real measurements whenever possible • The internal DSP algorithm will use as many parameters as are available from the RTP handler and the VF test being selected. The immeasurable parameters will assume their ITU default values • Supported over all Physical interfaces [Analog, TDM, and Ethernet] both passive & active • E-Model & RTP Monitor • When INMD is selected both Echo & delay along with lost and discarded packets • E-Model & SIP Call Setup • Uses metrics from selected VF tests (i.e. Echo Sounder)‏ • E-Model & MoIP Test (Voice Mode)‏ • MoIP provides E-model with measured values for frame loss, jitter, delay , echo and codec type.

  19. 960B IP Telephony Test InstrumentTechnology Digit Analyzer, Sender & RFC-2833 • DTMF/MF Digit Verification • Next Gen Nets Encode & Decode Digits • On/Off Times, Frequency & Level • Detects ANSI Standards and RFC-2833 Digits • Digit Sender Envelope Testing • Settable Frequency and Level and On/Off times • Send RFC-2833 Digits and in-band DTMF over SIP call • Support Both call termination and passive monitoring modes

  20. 960B IP Telephony Test InstrumentTechnology Advanced IEEE-743 TIMS • Provides Send & Measure Tone • Audio Spectrum Analyzer • Captures analog audio (PCM) • Sends Audio files • Measures C-Message, C-Notch and Sophometric Noise, S/N Ratio, Loss, and Return Loss • 23 Tones [IMD, EDD, SINAD, STD] • Transient Tests [Impulse Noise, Phase & Gain Hits, Amp & Phase Jitter

  21. 960B IP Telephony Test InstrumentTechnology Data Modem Emulation & Monitoring • Certify & Troubleshoot Peer to Peer Data Services (Point of Sale devices) • Emulate V.22Bis • Monitor and Decode V.9x Sessions

  22. 960B IP Telephony Test InstrumentTechnology • Provides Echo Detection and Echo Canceller Verification Enables field personnel to detect and isolates echo problems from a TDM, 10/100, or Analog interfaceMetricsListener Impact Echo Level(s) Echo Loudness Echo Delay(s) As delay gets longer echo becomes more noticeable Requirements Specified in ITU G.131 • Echo Generator – Advanced Echo Emulation – multi-channel to stress embedded echo cancellers Echo Sounder

  23. 960B IP Telephony Test InstrumentTechnology • ITU P.561 Non-Intrusive VQ Characterization • Passively Detects Echo in both directions via Dual Monitor E1/T1 or RTP Monitor • Monitor up to 60 TDM Channels Simultaneously and/or Up to 128 RTP Streams • Measures and Captures both Echo Level and Delay with Option to Record Audio INMD Passive Echo Monitor

  24. GUI Echo CancellerControl Ri Ro Echo(Hybrid Emulation) Network Echo Canceller Talker E1/T1 Si So 960B IP Telephony Test InstrumentITU G.168 Conformance Testing • ITU G.168 Conformance Testing Test 2A Convergence with NLP Enabled Test 2B Convergence with NLP Disabled Test 2C Convergence w/wo NLP Disabled Test 3A Low Level Double Talk Test 3B High Level Double Talk Test 3C Double Talk w/ Conversation Test 4 Leak Rate Test Test 5 Infinite Return Loss Convergence • Run Tests Manually or Automate in Sequence with Serial or TCP/IP Echo Control • Supports all ITU Standard Hybrid Dispersion Models • Conduct Tests while Stressing Canceller over Multiple Channels USBTCP/IP RS-232TCP/IP Test 6 Non-divergence on Narrow Band Signals Test 7 Stability Test Test 8 Non-Divergence w/Misc Test 9 Comfort Noise Test Test 10A FAX Test at Calling Side w/wo NLP Test 10B FAX Test at Called Side w/wo NLP Test 13AB GSMFR Echo w/wo NLP Test 15AB PCM Offset: S(in): R(in)

  25. t t t 960B IP Telephony Test InstrumentTechnology One-Way Delay Test • Measure One-way Delay between Disparate Telephony Interfaces in the Lab • TDM to TDM • IP to TDM • TDM to Analog • IP to Analog • Pinpoint delay issues to segments of the network • Test works with multiple 960’s as long as the real-time audio ports (mic & spk) are connected. PSTN VoIP POTS IP Phone Gateway

  26. 960B IP Telephony Test InstrumentTechnology PRI-ISDN Protocol Monitor • Easy to read layer 2 and Layer 3 decode and filter • Manual call setup to facilitate call setup troubleshooting • Supports Termination, Single and Dual Monitor modes

  27. CAS Signaling Monitor & Control Bit Emulation • Monitor CAS Control Bit (ABCD) states and timing • Troubleshoot wink start circuits • Log signaling events for analysis • Define Offhook/Onhook states • Coming settable ABCD bits

  28. 960B IP Telephony Test Instrument SIP Call Setup • RFC Standard 3261, 2617 • Supports VF Test Setup (Clarity, Echo, etc…) • VoIP Pre-Qualification & LAN Assessment Testing MetricsDescription Lost, Discarded, & Out of Sequence Packets Impaired Packet Counter Packet Arrival Delay Tracks One-Way Delay Variation Inter-Arrival Jitter Inter Packet Arrival Time Variation Transient Packet Loss (Lost + Discarded) Tracks Bursty Packet Loss Lost & Dropped Packet Loss Distribution Quantifies Contiguous Packet Loss

  29. 960B IP Telephony Test InstrumentTechnology SIP Monitor • Easy to read decode with time stamping • Troubleshoot Call setup issues

  30. 960B IP Telephony Test InstrumentTechnology RTP Monitor • Passively Monitor & Troubleshoot SIP, H.323, NCS, or MGCP VoIP calls from the 10/100 interface • Qualify Voice Quality on Turn-up • Select Auto Discovery or Specify up to 128 addresses to Monitor (256 Simultaneous RTP streams) • Analyze RTP for Echo and Audio Levels (G.711 & G.729) • Emulates Jitter Buffer filters to assess delays impacts on Audio Quality • Assess Two-way RTP Packet Impairments Half Duplex (Hub/Switch) or Full Duplex (Tap) Monitor points Metrics Description Lost, Discarded, & Out of Sequence Packets Impaired Packet Counter Packet Arrival Delay Tracks One-Way Delay Variation Inter-Arrival Jitter Inter Packet Arrival Time Variation Transient Packet Loss (Lost + Discarded) Tracks Bursty Packet Loss Lost & Dropped Packet Loss Distribution Quantifies Contiguous Packet Loss

  31. 960B IP Telephony Test InstrumentTechnology RTCP Monitor • Isolate Poor Performance - Passivley Monitor RTCP • Decode RTCP-XR Extending Reporting to Passively Assess User Experience on a Segment

  32. 960B IP Telephony Test Set IP Impairment Generator • Insert static and variable delay (jitter) • Insert packet loss • Impair target packet types (i.e RTP, SIP, etc…) • Impair target IP addresses for compare and contract testing

  33. 960B NGN Telephony Portable InstrumentInterfaces Analog • Physical Parameters • Line Voltage (On/Off Hook) • Loop Current • Ringing Voltage, Duration, Freq • Call Progress Parameters • Dial Tone Delay • Post Dial Delay • Caller ID Decode

  34. 960B IP Telephony InstrumentTest Throughput • Orig/Term/Mon Up to 124 Simultaneous Test Calls Over TDM Interfaces • Orig/Term/Mon Up to 200 Simultaneous Test Calls Over Ethernet Interfaces • Orig/Term Up to 4 Simultaneous Test Calls Over Analog Interfaces • All Interfaces can be operated Simultaneous

  35. 960B User Interfaces PC Client GUI HTML Interface Command Line Interface • PC GUI Client Application with direct USB or Remote Connection via TCP/IP (Single-User)‏ • Stores & Loads User-Defined Test Configurations • Interoperates with Script Control and Test Config Files • Provides test scheduling and dial plan integration

  36. 960B IP Telephony Test InstrumentApplications: VoIP Pre-Qualification • VoIP Pre-qualification Testing • Place Multiple SIP Calls to Assess Readiness(Up to 200 ) • Test through Segments, Backplanes and Routers • Generates Real RTP and Emulates IP Phones with Jitter Buffers, and TOS • Test through router to 966 with TDM of IP Termination to Trunking Gateway Enterprise WAN 966R Router VoIP 960B 10/100 Switch Hub Work Station LAN

  37. 960B Technology Video Quality Monitor • Monitors IP Video Teleconferencing Streams(H.264, MPEG4)‏ • Decodes and Discriminates between Frame types (I, B and P) • Provides Damaged Video Sequence Counters • Provides Effective Frame Loss (takes into account I, B and P frames) • Supports RFC 4445 MDI • Ratio Frame Loss and total Frame Count • Ratio is mapped to a 1-5 MOS score

  38. 960B Technology ITU-T G.1070 • Provide both Monitoring and VTC Emulation • SIP and PRI-ISDN (H.321)‏ • Sq Avr, and Min/Max • Vq Avr, and Min/Max • MMq, MMsv, and MMT • Adjustable Meas Window, Jitter Buffer & Codec Selection • Provides Video Capture & Replay • Late '09

  39. 960B Roadmap • Video Teleconference Terminal (VTC) Emulation • SIP Video Capture and Display • Early ‘10 • GigE Interface • Available now • Post-Test Analysis Server Software (PASS) • Complete • 16 KHz Broadband Analog - Complete • ITU-T G.1070 • Early ’10

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