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S age I n s t r u m e n t s
Sage 960B
General Purpose IP Telephony
Test Set
December 2010
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Sage Instruments
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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)
SageInst
.com
Product Overview
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960B IP Telephony Test Set
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E1/T1, Analog and GigE interfaces
Packet Voice, Next Generation Test Set
Hybrid Network End-to-end testing, turn-up and
troubleshooting
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960B IP Telephony Portable Instrument
Test Interfaces
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Configurable Multi-Interface Test Instrument
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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)
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Provides Physical Layers Metrics
Two 4-wire Analog ports (Dry)
Interface and Channel Selectable Audio Monitor and
Talk (Mic & Spkr)
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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
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IP Voice Processing Impairments
Quantization
Noise
Audio Signal
Clarity
Degradation
and Delay
Voice Clipping
Tone Detection
Voice
Compression
Compressed
Voice Frame
10110010…….101
PCM byte
Line card: A/D, G.711
Logarithmic encoding
Distortion
Noise
Forward Path
Delay
IP Layer
Packetization
IP Header
VAD
10110010
Silence
Suppression
IAD/IP Phone
CPE
Noise
Fidelity
IP Data/payload
Network
Routers,
Switches
IP Header
Lost/Errored
Frame
concealment
Voice Decoder
Delay
IP Packet
Fragmentation
Noise
Level
Reverse Path
Packet
Jitter Buffer
De-packetization,
reassemble voice
frames, Lost/delayed
packet handling
Long Delay
Voice jitter
Discarded Pkt
Output Audio
Signal
PCM stream
10110010
Comfort Noise
Generator
IP Data/payload
Echo
Canceller
PCM Line Driver
Audio Playout
Unit
Gateway/ PBX On-Net
2-4
Wire
Hybrid
Off-Net
Echo
Source
P
O
T
S
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Next Generation Voice Processing
Echo
Canceller
Tone
Detection
CODEC
CNG
Voice
Processing
DSP
Dynamic
Jitter Buffer
Packet
Substitution
VAD
T.38 Fax
 The Voice Processing DSP core
 Embedded in Gateways IADs and IP Phones
 Supports a variety of real-time processing tasks for multiple
channels
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960B IP Telephony Test Instrument
Applications: Enterprise GW Turn-up
Multiple SIP Call(s)
E1/T1
10/100
Analog
Multiple Calls
VoIP
EC
IP PBX/TGW/IAD/IP Phone
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Gateway Pass Thru Transparency Testing
• Test Cancellers
• Verify In-band Data or T.38 Fax Relay
• Voice Quality
• DTMF Encoding/Decoding (E911 Testing)
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960B Technology
Application:
Lab Certification
Enterprise Turn-up
Troubleshooting
2/4-Wire Analog
10/100/1000
Optional
SAGE 925
Handheld
Device
Supports
E-model
E1/T1
TGW
VoIP
Network
IP PBX
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IP Phone/ATA
Access Gateway Test Configuration
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Turn-up, and Cert Testing (SIP, RTP MON, TDM Call)
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Test Call Generation
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Voice Quality, Echo, Fax ……
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960B IP Telephony Test Instrument
Applications: Passive Monitoring & Troubleshooting
Half/Full
Duplex
Monitor
10/100
Rx1
E1/T1
IP PBX/TGW
TDM
Talker
VoIP
Network
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Rx2
Hybrid
Echo
Echo
Troubleshooting Echo
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CO/Tandem
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
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960B IP Telephony Test Instrument
Technology
Two-way SMOS & PESQ
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
Metrics
Voice Clarity (MOS,PESQ)
Voice Packet/Frame Slips
Rnd Trp Delay
Audio Level
Comfort Noise
Effective Bandwidth
Codec Type Detection
Listener Impact
Distortion, Packet Loss
Voice Gapping, Jerking
Talk-over
Too Loud or Quiet
Too High or Too low
In-band data qualification
Provisioned incorrectly
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960B IP Telephony Test Instrument
Technology
PESQ File Director & Responder
Provides End-to-End Voice Quality
Characterization
Allows operators to send generic audio file
in both directions over analog interfaces
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960B IP Telephony Test Instrument
Technology
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 Metrics
Listener Impact
Voice Clarity (MOS,PESQ)
Voice Packet/Frame Slips
Audio Level
Comfort Noise
Distortion, Packet Loss
Voice Gapping, Jerking
Too Loud or Quiet
Too High or Too low
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960B IP Telephony Test Instrument
Technology
PVIT
Comprehensive Voice Quality Performance test.
Enables field personnel to zero in on causes of poor voice quality.
Considered the DS0 BERT test for VoIP!
Metrics
Listener Impact
Voice Frame Loss Event Count
+/- Frame Slip Event Count
Voice Clipping Event Count
Noise Hit Event Count
Distortion from Packet Loss
Voice Gapping and Jerking
Choppy Voice
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)
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960B IP Telephony Test Instrument
Technology
Fax Tx, Rx & mon
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Emulate Up to 120 Facsimile Transmitters and
Receivers (T.30)
Certify and Stress Gateway/ATA for In-band Data
Transparency
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Terminate Fax on TDM, Packet, and Analog
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Decodes V.21 (FSK) Two-way Fax Transmission
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Support All Data Rates for V.17 V.29, V.27, V.22
BIS & V.34 (Mon Only)
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960B IP Telephony Test Instrument
Technology
T.38 Fax Relay Monitor and Emulator
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Certify & Troubleshoot Fax over IP problems
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Full Monitor and decode of T.38 Protocol
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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.
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960B IP Telephony Test Instrument
Technology
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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)
Voice
Data
Fax
Audio Level
Frame Loss
Frame Jitter (+/-)
Codec Type
Round Trip Delay
Frame Loss
Frame Jitter (+/-)
Codec Type
Round Trip Delay
Frame Loss
Frame Jitter (+/-)
Codec Type
Round Trip Delay
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960B Technology
E-MODEL
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ITU G.107 Conversational Quality Test
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Computational model for use in transmission planning
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Packet Loss, Jitter Induced PL, Echo, Delay, Noise plus Service Type
Degradation Factor
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Provides R-Factor 1-100 and E-MOS of 1-5
Sage’s E-Model is calculated with real measurements whenever possible
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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
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Supported over all Physical interfaces [Analog, TDM, and Ethernet] both
passive & active
E-Model & RTP Monitor
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When INMD is selected both Echo & delay along with lost and discarded
packets
E-Model & SIP Call Setup
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Uses metrics from selected VF tests (i.e. Echo Sounder)
E-Model & MoIP Test (Voice Mode)
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MoIP provides E-model with measured values for frame loss, jitter, delay ,
echo and codec type.
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960B IP Telephony Test Instrument
Technology
Digit Analyzer, Sender & RFC-2833
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DTMF/MF Digit Verification
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Next Gen Nets Encode & Decode Digits
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On/Off Times, Frequency & Level
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Detects ANSI Standards and RFC-2833 Digits
Digit Sender Envelope Testing
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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
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960B IP Telephony Test Instrument
Technology Advanced IEEE-743 TIMS
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Provides Send & Measure Tone
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Audio Spectrum Analyzer
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Captures analog audio (PCM)
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Sends Audio files
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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
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960B IP Telephony Test Instrument
Technology
Data Modem Emulation & Monitoring
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Certify & Troubleshoot Peer to Peer Data
Services (Point of Sale devices)
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Emulate V.22Bis
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Monitor and Decode V.9x Sessions
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960B IP Telephony Test Instrument
Technology
Echo Sounder
Provides Echo Detection and Echo Canceller Verification
Enables field personnel to detect and isolates echo problems
from a TDM, 10/100, or Analog interface
Metrics
Listener 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
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960B IP Telephony Test Instrument
Technology
INMD Passive Echo Monitor
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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
960B IP Telephony Test Instrument
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ITU G.168 Conformance Testing
USB
TCP/IP
Echo Canceller
Control
RS-232
TCP/IP
Ri
Talker
E1/T1
Ro
Network
Echo Canceller
So
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Si
ITU G.168 Conformance Testing
Test 2A
Test 2B
Test 2C
Test 3A
Test 3B
Test 3C
Test 4
Test 5
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Echo
(Hybrid Emulation)
Convergence with NLP Enabled
Convergence with NLP Disabled
Convergence w/wo NLP Disabled
Low Level Double Talk
High Level Double Talk
Double Talk w/ Conversation
Leak Rate Test
Infinite Return Loss Convergence
Test 6
Test 7
Test 8
Test 9
Test 10A
Test 10B
Test 13AB
Test 15AB
Non-divergence on Narrow Band Signals
Stability Test
Non-Divergence w/Misc
Comfort Noise Test
FAX Test at Calling Side w/wo NLP
FAX Test at Called Side w/wo NLP
GSMFR Echo w/wo NLP
PCM Offset: S(in): R(in)
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
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960B IP Telephony Test Instrument
Technology One-Way Delay Test
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Measure One-way Delay between Disparate
Telephony Interfaces in the Lab
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TDM to Analog
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IP to Analog
IP Phone
t
PST
N
VoI
P
IP to TDM
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t
t
TDM to TDM
POTS
Gateway
Pinpoint delay issues to segments of the network
Test works with multiple 960’s as long as the realtime audio ports (mic & spk) are connected.
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960B IP Telephony Test Instrument
Technology
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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
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CAS Signaling Monitor & Control Bit Emulation
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Monitor CAS Control Bit (ABCD) states and
timing
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Troubleshoot wink start circuits
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Log signaling events for analysis
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Define Offhook/Onhook states
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Coming settable ABCD bits
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960B IP Telephony Test Instrument
SIP Call Setup
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RFC Standard 3261, 2617
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Supports VF Test Setup (Clarity, Echo, etc…)
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VoIP Pre-Qualification & LAN Assessment Testing
Simultaneous EP’s per Ethernet
Port
Port Configuration
24
10Mb/s, Half Duplex
48
10Mb/s, Full Duplex
100
100Mb/s, Half Duplex
200
100Mb/s,Full Duplex
200
1000Mb/s, Full / Half Duplex
Metrics
Lost, Discarded, & Out of Sequence Packets
Packet Arrival Delay
Inter-Arrival Jitter
Transient Packet Loss (Lost + Discarded)
Lost & Dropped Packet Loss Distribution
Description
Impaired Packet Counter
Tracks One-Way Delay Variation
Inter Packet Arrival Time Variation
Tracks Bursty Packet Loss
Quantifies Contiguous Packet Loss
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960B IP Telephony Test Instrument
Technology
SIP Monitor
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Easy to read decode with time stamping
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Troubleshoot Call setup issues
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960B IP Telephony Test Instrument
Technology
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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
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960B IP Telephony Test Instrument
Technology
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RTCP Monitor
Isolate Poor Performance - Passivley Monitor
RTCP
Decode RTCP-XR Extending Reporting to
Passively Assess User Experience on a Segment
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960B IP Telephony Test Set
IP Impairment Generator
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Insert static and variable delay (jitter)
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Insert packet loss
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Impair target packet types (i.e RTP, SIP, etc…)
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Impair target IP addresses for compare and
contract testing
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960B NGN Telephony Portable Instrument
Interfaces
Analog
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Physical Parameters
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Line Voltage
(On/Off Hook)
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Loop Current
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Ringing Voltage, Duration, Freq
Call Progress Parameters
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Dial Tone Delay
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Post Dial Delay
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Caller ID Decode
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960B IP Telephony Instrument
Test Throughput
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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
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960B User Interfaces
PC Client GUI
HTML Interface
Command Line Interface
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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
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960B IP Telephony Test Instrument
Applications: VoIP Pre-Qualification
Enterprise WAN
966R
Router
VoIP
10/100
Switch
960B
Hub
Work Station
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LAN
VoIP Pre-qualification Testing
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Place Multiple SIP Calls to Assess Readiness
(Up to 200 )
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Test through Segments, Backplanes and Routers
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Generates Real RTP and Emulates IP Phones with Jitter Buffers, and TOS
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Test through router to 966 with TDM of IP Termination to Trunking
Gateway
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960B Technology
Video Quality Monitor
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Monitors IP Video Teleconferencing Streams(H.264, MPEG4)
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Decodes and Discriminates between Frame types (I, B and P)
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Provides Damaged Video Sequence Counters
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Provides Effective Frame Loss (takes into account I, B and P
frames)
Supports RFC 4445 MDI
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Ratio Frame Loss and total Frame Count
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Ratio is mapped to a 1-5 MOS score
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960B Technology
ITU-T G.1070
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Provide both Monitoring and VTC Emulation
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SIP and PRI-ISDN (H.321)
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Sq Avr, and Min/Max
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Vq Avr, and Min/Max
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MMq, MMsv, and MMT
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Adjustable Meas Window, Jitter Buffer & Codec
Selection
Provides Video Capture & Replay
Late '09
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960B Roadmap
Video Teleconference Terminal (VTC)
Emulation
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GigE Interface
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SIP Video Capture and Display
Early ‘10
Available now
Post-Test Analysis Server Software (PASS)
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Complete
◆ 16 KHz Broadband Analog - Complete
◆ ITU-T G.1070
 Early ’10