1. Introducing NetBorder Call Analyzer 2.0
September 2010

2. Contents Recap what is NetBorder Call Analyzer (NCA)?
Contents
Recap what is NetBorder Call Analyzer (NCA)?
What is new with NCA 2.0?
Benchmarking & Accuracy
Upgrades
Closing
© 2010 Sangoma Confidential

3. What is NCA? It does Call Progress Analysis (CPA)
What is NCA?
It does Call Progress Analysis (CPA)
Determines automatically if a call is answered by a Live Person, an Answering Machine, etc.
Often Called:
CPD: Call Progress Detection
AMD: Answering Machine Detection
Needs to be accurate and fast
It is a 100% software product
It is a 100% SIP and VoIP Product
It complements Automated Dialers
© 2010 Sangoma Confidential

4. Typical SIP / VoIP Dialer
Typical SIP / VoIP Dialer
Dialer Application
Built in CPA
VoIP Gateway
TDM
SIP Protocol
T1/E1
Dialer Application
VoIP Gateway
Built in CPA
TDM
SIP Protocol
T1/E1
Dialer Application
Built in CPA
Session Border Controller IP
SIP Protocol
SIP Trunk
Session Border Controller
Built in CPA
Dialer Application IP
SIP Protocol
SIP Trunk
© 2010 Sangoma Confidential

5. Turn off Built-in CPA Technologies / Use NCA – SIP B2BUA
Turn off Built-in CPA Technologies / Use NCA – SIP B2BUA
Dialer Application
Built in CPA
VoIP Gateway
Sangoma NCA
TDM
Sangoma
NCA
Session Border Controller
Sangoma NCA IP
T1/E1
SIP Trunk
SIP
SIP
SIP
SIP
SIP
SIP
SIP
SIP
© 2010 Sangoma Confidential

6. Why Turn off other CPA Technologies?
Why Turn off other CPA Technologies?
NCA uses its own algorithm
Developed at Sangoma / Patent Pending
Use of Neural Networks to tackle CPA
In other words: We have designed a CPA Brain
Learning machine
Trained over large amounts of data
Delivering
High out-of-the box accuracy
Quick connection
Streamlined tuning
Other technologies use Heuristics
Define simple rules (energy vs duration, etc.)
Not good at varying dialing conditions
© 2010 Sangoma Confidential

7. What’s new with NCA 2.0? Recognition Model split in 3 phases
What’s new with NCA 2.0?
Recognition Model split in 3 phases
International Tones Definitions
Enhanced Human-Vmail-Fax Detection Model
End-of-Message Detection (Answering Machines)
More Granular Classifications
Statistics rolled up under 1 single file
Enhanced Troubleshooting
Configuration Files instead of Python Scripts editing
Support for Windows® bits
© 2010 Sangoma Confidential

8. 3 Phase Recognition – Divide to conquer
3 Phase Recognition – Divide to conquer
Outbound Calls have 2 phases:
Pre-connect (ringing, busy, vacant, unlisted...)
Post-connect (live, answering-machine, fax)
In CPA 1.0, one giant model was used to classify all calls
In CPA 2.0, it is divided in 3 phases:
Pre-connect detection
Post-connect detection
End-of-message detection (beep detection)
In other words, instead of 1 large “brain”, we now have 3 specialized “brains”
© 2010 Sangoma Confidential

9. 3 Phase Recognition – Divide to conquer
3 Phase Recognition – Divide to conquer
Pre-connect “brain”
Specializes in detection of worldwide ringing tones, SIT tones, etc.
Post-connect “brain”
Specializes in detection of live, answering machines, fax, etc.
Re-trained with more call samples with v 2.0
End-of-Message “brain”
Specializes in detection of the end of a greeting
Useful feature for outbound notification market
These combine to classify outbound calls
© 2010 Sangoma Confidential

10. More Granular Classifications
More Granular Classifications
SIP header CPA result and call flows maintained from v 1.0
In V 2.0, introduction of Extended CPD result header in SIP message for more details
Example: Answering Machine Classification
In v 1.0: 1 level – AMD
In V 2.0: 4 levels
AMD – AMD
AMD – End of Greeting Beep
AMD – End of Greeting Silence
AMD – End of Greeting Timeout
Headers for Campaign management
Easier deployment for hosting facilities
© 2010 Sangoma Confidential

11. Statistics NCA produces detailed log files
Statistics
NCA produces detailed log files
Can be difficult without writing specific scripts to find useful information from Log files
NCA 2.0 introduces Cpa-stats.csv file
File contains detailed information for each call
Call Id, Call Date, Phone number, CPA result, time stamps
Database style logging – easy upload to databases
Use with built-in recording feature to monitor quality
© 2010 Sangoma Confidential

12. Enhanced Troubleshooting
Enhanced Troubleshooting
Error messages posted to
Log files
OS event viewer
Version 2.0 adds several new messages
More details
More information
Helps pin-point integration issues
© 2010 Sangoma Confidential

13.
Configuration Files
V 1.0 required editing Python script files to customize product configuration
Tricky (it’s like editing code)
Cryptic
V 2.0 introduces Configuration Files
Easier to edit visually
Place holder for future Web base GUI configurations
© 2010 Sangoma Confidential

14. Operating Systems Support for:
Operating Systems
Support for:
Windows® XP, Vista, 7, Server 2003 in 32 bits
Windows Server 2008, 64 bits
Linux CentOS 5.5, 64 bits
© 2010 Sangoma Confidential

15. Minimum Server Requirements
Minimum Server Requirements
Dual-Core CPU (for less than 50 calls)
Quad-Core CPU
1 GB RAM (2 GB recommended)
60 GB of available disk space
Connection to IP network
© 2010 Sangoma Confidential

16. Port Density / Internal benchmark testing
Port Density / Internal benchmark testing
Test Scenario
SIPP scripts to simulate dialer
Media streaming server used to simulate callees
Call Mix:
35% live answers
60% answering machines
5% busy
Call Rate: 20 cps
Average used CPA licenses: 222
RESULTS 1:
Windows 7 Home Premium, 32 bits
Processor: Intel Core2 Quad CPU 2.66GHz, 6M cache
Installed Memory: 4GB (3GB usable)
Average CPU usage: 85%
RESULTS 2:
Windows Server 2008 standard Edition, 64 bits
Processor: Intel Xeon Quad CPU 2.83GHz, 12M cache
Installed Memory: 4GB
Average CPU usage: 85%
RESULTS 3:
Windows Server 2003 R2, 32 bits
Processor: Intel Xeon Quad CPU 2.13GHz, 8M cache
Average CPU usage: 75%
Approximately 200 ports per server recommended
© 2010 Sangoma Confidential

17. Benchmarking and Accuracy
Benchmarking and Accuracy
NCA uses detection algorithm that is internally developed
To train and measure accuracy:
We have 5000 call samples
Wireline, wireless, business, MRBT, etc.
4500 are used to train the models
500 are used to test the model
Comparison to other DSP technologies out of the box (no tuning)
Very tough call set
© 2010 Sangoma Confidential

18. Benchmarking and Accuracy (cont.)
Benchmarking and Accuracy (cont.)
Results Track accuracy and Response time
Response Time from end of “Hello”
Results do not take into account pre-connect calls
Easy to detect
Tends to move overall results upwards
Results are not a guarantee / they provide an indication of results given a significant statistical sample >500 calls
Following slides show results
© 2010 Sangoma Confidential

19. Accuracy vs. Response Time Comparison
Accuracy vs. Response Time Comparison
Accuracy
Avg. Response Time (Seconds)
 Tm
 Th
NCA Threshold Configuration (Th / Tm)
© 2010 Sangoma Confidential

20. Live / AMD / Overall Accuracy vs. Response Time
Live / AMD / Overall Accuracy vs. Response Time
Avg. Response Time (Seconds)
Accuracy
NCA Threshold Configuration (Th / Tm)
© 2010 Sangoma Confidential

21. Typical Modes of Operations / Settings
Typical Modes of Operations / Settings
UK Offcom
Default
Avg. Response Time (Seconds)
Accuracy
NCA Threshold Configuration (Th / Tm)
© 2010 Sangoma Confidential

22. Upgrades Upgrading from 1.x to 2.x requires a new S/W license
Upgrades
Upgrading from 1.x to 2.x requires a new S/W license
For customers that pay annual Support and Maintenance fee – upgrade is free
Other cases
buy NETBCPAUPG SKU
$45 per port list
Minor Releases do not require new S/W license
1.0.5 to does not require a new license
to requires new license
2.0.0 to does not require a new license
© 2010 Sangoma Confidential

23. Closing Remarks NCA uses its own patent pending algorithms
Closing Remarks
NCA uses its own patent pending algorithms
The most accurate technology in the market!
NCA 2.0 introduces
Specialized recognition models
More granularity and flexibility
Easier configuration and troubleshooting
More Operating Systems Coverage
The whole thing just got better!
© 2010 Sangoma Confidential

24. For more information www.sangoma.com www.wiki.sangoma.com
For more information
© 2010 Sangoma Confidential

25. Thank you!