Lawful Interception Offering

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Lawful Interception Offering
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Presentation Highlights

• Company Profile
• Offering for Lawful Interception Market
• Roadmap for Lawful Interception Market (Video)
• Summary

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Presentation Highlights

• Company Profile
• Offering for Lawful Interception Market
• Roadmap for Lawful Interception Market (Video)
• Summary

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Surf Company Profile

• Established in 1996
• Headquartered in Israel
• Leading provider of Media-over-Packet solutions
• Telecom Industry
• Focused on media processing
• Voice
• Video
• Data (Fax/Modem)
• Solutions for PSTN, IP, Mobile networks
• DSP, chip- and board-level solutions
• Lawful Interception Market
• LI interception modules for PSTN, IP, Mobile
  networks
• Customers Major LI manufacturers in Europe and
  Israel

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Customer Base

• Surf customers include
• Surf customers place repeat orders
• Field-proven telecom and LI HW/SW system
  solutions
• Worldwide support and maintenance

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Presentation Highlights

• Company Profile
• Offering for Lawful Interception Market
• Roadmap for Lawful Interception Market (Video)
• Summary

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Surf Offering for LI Market

• 2-Wire Active/Passive Interceptor
• PSTN (4-Wire) Interception SW module for Modem
  and Fax transmission
• ISDN Framing Interception SW module
• Mobile Interception (GSM) SW module for Data and
  Fax transmission
• IP Interception SW module

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2-Wire Active/Passive Interceptor

• PCI card installed in a PC between client side
  and CO
• Built from Probing module, CO/Clients modules
• The Interceptor listens to the 2-wire line
• Continuously delivers the samples/Modem data to
  the host application
• On/Off-hook detection
• The Interceptor has four RJ-11 POTS
• Record two separate calls simultaneously

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2-Wire Interceptor - States
Supports two states Passive and Active
Passive State
Host Controller
Samples
2-Wire Interceptor
Central Office
PSTN
1. During Voice and Fax calls, the interceptor
listens to the 2-wire line in Passive (default)
state.
2. The Interceptor delivers samples to the host
application.
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2-Wire Interceptor States
Active State
Demodulated Data
Host Controller
2-Wire Interceptor
Central Office
PSTN
1. When the Interceptor identifies a Modem call,
it switches into Active state.
2. The Interceptor delivers demodulated data to
the host PC.
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2-Wire Interceptor Active State

• The Interceptor determines the protocol used from
  client to CO
• Data-pumps V.92, V.90, V.34, V.32(bis)
• EC V.44, V.42, MNP5
• DC V.42bis, MNP24
• Emulates a CO Modem (subscriber view)
• Emulates a client Modem (CO view)
• Outputs the demodulated data in PPPD format to
  the Host

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2-Wire Interceptor Passive State

• The Interceptor outputs samples from the 2-wire
• On/Off-hook detection
• Fax V.34HD and fallbacks
• Voice
• V.22 and fallbacks
• Surf offers an optional module (runs on a PC)
• Converts Fax samples into TIFF pages

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PSTN (4-Wire) Solution Concept
Two sets of PCM streams
4-Wire SW Probe
Central Office
PSTN

• The Probe is a software-based solution installed
  at the CO
• Can be used in Off-Line or Real-Time mode
  (multi-thread)
• Based on Surfs long-standing field-hardened
  telecom technology

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PSTN (4-Wire) Solution

• Receives PCM data from the digital portion of the
  CO
• Support two types of calls
• Modem
• Fax
• For Modem calls
• Converts the PCM data into PPP frames
• For Fax calls
• Converts the PCM data into TIFF pages

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PSTN (4-Wire) Solution

• Modem Probe Processing
• Data-pump all of ITU-T V series V.92 and
  fallbacks
• Error correction V.42bis, MNP2-4
• Data compression V.44, V.42bis, MNP5
• Available for PC, consuming 100MCPS per channel

• Fax Probe Processing
• Data pumps V.34HD, V.17, V.29, V.27ter, V.21
  Protocol
• T.30
• Extraction of T.4 parameters based on T.30
• NSF Supports decoding of several known
  non-standard features
• T.4 extraction MH, MR, MMR with all available
  types
• Available for PC and TI C6x DSPs

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ISDN Framing Probe

• Software-based probe
• Possible inputs
• ITU-T V.110 streams
• ITU-T V.120 streams
• Output
• Data retrieval from input streams

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GSM/UMTS Circuit-Switched Probe
Mobile Core Network
Control
IUT-T V. Standards
ETSI/3GPP Standards
MSC
A-Interface TDM stream
GSM/UMTS CS Data Probe

• The Probe is a software-based solution for
  MSC-BSC/RNC
• Can be used in Off-Line or Real-Time mode
  (multi-thread)

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GSM/UMTS Circuit-Switched Probe
Mobile Core Network
Control
IUT-T V. Standards
ETSI/3GPP Standards
MSC
A-Interface TDM stream
Two sets of PCM Streams
GSM/UMTS CS Data Probe

• Optionally supports 4-wire probe solution
• Full Mobile-to-PSTN/ISDN interception solution

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GSM/UMTS Circuit-Switched Probe
Mobile Core Network
Control
IUT-T V. Standards
ETSI/3GPP Standards
MSC
IWF
A-Interface TDM stream
Two sets of PCM Streams
GSM/UMTS CS Data Probe

• Based on Surfs field-proven and deployed IWF
  technology

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GSM/UMTS Circuit-Switched Probe

• Supports 2/2.5/3G wireless gateway interceptor
• A-Interface input streams towards 2G/2.5G Radio
  network
• TDM input towards 3G MSC (A-TRAU)
• Compliant with ETSI relevant specification
• Data towards 2G/2.5G
• Modified ITU-T V.110, according to TS 48.020
• A-TRAU, according to TS 48.020
• High-speed circuit-switched data (HSCSD) support
• Split/Combine, multiplexing function as defined
  in TS 44.021
• Up to 4 sub-streams per input stream
• Data towards 3G
• A-TRAU, as defined in TS 29.007

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GSM/UMTS Circuit-Switched Probe

• Supports Non-Transparent Bearer Services (Data)
• RLP version 0, 1 and 2 according to 3GPP TR
  24.022
• Supports Handover
• Switching from one rate adaptation scheme to
  another
• Transparent Fax Service
• Modified V.110 (with HSCSD), A-TRAU for Fax
  Service
• GSM 03.45 Mobile Fax Relay
• Generates TIFF images
• Automatic Discrimination of Input Streams
• Transparent and non-transparent data
• Diverse radio channels

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IP Interception Concept
Voice Video GW
Voice Video GW
Media processing board
Media processing board
IP Captured Streams
IP Interceptor Probe

• The probe is a SW-based solution for Fax/Data IP
  streams
• Can be used in Off-Line or Real-Time mode
  (multi-thread)
• Can get IP-captured input from anywhere in the
  IP Cloud

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Supported IP Payload Interception
IP Captured Streams
IP Interceptor Probe
TIFF

• FoIP Output TIFF Pages

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Supported IP Payload Interception
IP Captured Streams
IP Interceptor Probe
De-Modulated data to PPPD

• MoIP PPPD Format (out of demodulated data)

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IP Interception FoIP

• Interception of FAX pages over IP traffic
• Input Captured IP traffic file
• Output TIFF file or raw bits (e.g. for
  encrypted fax)
• Full support
• T.38
• G.711 (over UDP/IP)

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IP Interception MoIP

• Interception of Modem data over IP traffic
• Input Captured IP traffic file
• Output PPPD files
• Full Support
• VBD (Modem over G.711)

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Video LI Roadmap
Voice Video GW
Media processing board
SIP Video Phone

• Using Surf Voice/Video transcoding abilities to
  retrieve Video transmissions

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Video LI Roadmap - Capabilities

• Supports Video retrieval from the following
  networks
• Mobile Video retrieval from 3G-324M stream
• PSTN Video retrieval from H.324 stream
• IP Video retrieval from IP Video stream
• Supported Video coders
• MPEG4
• H.264 H.263 H.261
• Video framing RTP, H.223

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Presentation Highlights

• Company Profile
• Offering for Lawful Interception Market
• Roadmap for Lawful Interception Market (Video)
• Summary

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Summary

• 2-Wire Active/Passive Interceptor
• PSTN (4-Wire) Interception SW module for Modem
  and Fax transmission
• ISDN Framing Interception SW module
• Mobile Interception (GSM) SW module for Data and
  Fax transmission
• IP Interception SW module
• Video Lawful Interception

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Thank You
www.surf-com.com