1. Lawful Interception Offering
Surf Proprietary Information

2. Presentation Highlights
Company Profile
Offering for Lawful Interception Market
Roadmap for Lawful Interception Market (Video)
Summary
Surf Proprietary Information

3. Presentation Highlights
Company Profile
Offering for Lawful Interception Market
Roadmap for Lawful Interception Market (Video)
Summary
Surf Proprietary Information

4. 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
Surf Proprietary Information

5. Customer Base Surf customers include:
Surf customers place repeat orders
Field-proven telecom and LI HW/SW system solutions
Worldwide support and maintenance
Surf Proprietary Information

6. Presentation Highlights
Company Profile
Offering for Lawful Interception Market
Roadmap for Lawful Interception Market (Video)
Summary
Surf Proprietary Information

7. 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
Surf Proprietary Information

8. 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
Surf Proprietary Information

9. 2-Wire Interceptor - States
Supports two states: Passive and Active
Passive State
Modem
Client Side
Host Controller
Samples
Fax
2-Wire Interceptor
Central Office
Phone
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.
Surf Proprietary Information

10. 2-Wire Interceptor – States
Active State
Modem
Client Side
Demodulated
Data
Host Controller
Fax
2-Wire Interceptor
Central Office
Phone
PSTN
1. When the Interceptor identifies a Modem call, it switches into Active state.
2. The Interceptor delivers demodulated data to the host PC.
Surf Proprietary Information

11. 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, MNP2–4
Emulates a CO Modem (subscriber view)
Emulates a client Modem (CO view)
Outputs the demodulated data in PPPD format to the Host
Surf Proprietary Information

12. 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
Surf Proprietary Information

13. PSTN (4-Wire) Solution Concept
Modem
Client Side
Two sets of PCM streams
4-Wire SW Probe
Fax
Central Office
PSTN
Phone
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 Surf’s long-standing field-hardened telecom technology
Surf Proprietary Information

14. 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
Modem
Fax
Surf Proprietary Information

15. PSTN (4-Wire) Solution Modem Probe Processing Fax 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
Modem
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
Fax
Surf Proprietary Information

16. ISDN Framing Probe Software-based probe Possible inputs: Output:
ITU-T V.110 streams
ITU-T V.120 streams
Output:
Data retrieval from input streams
Surf Proprietary Information

17. GSM/UMTS Circuit-Switched Probe
Mobile Terminal
3.1K Audio Modem
Mobile Core Network
PSTN Fax Machine
Control
IUT-T V.
Standards
PSTN/ISDN
Mobile Radio Network
ETSI/3GPP
Standards
MSC
A-Interface
TDM stream
ISDN Modem
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)
Surf Proprietary Information

18. GSM/UMTS Circuit-Switched Probe
Mobile Terminal
3.1K Audio Modem
Mobile Core Network
PSTN Fax Machine
Control
IUT-T V.
Standards
PSTN/ISDN
Mobile Radio Network
ETSI/3GPP
Standards
MSC
A-Interface
TDM stream
ISDN Modem
Two sets of
PCM Streams
GSM/UMTS CS Data Probe
Optionally supports 4-wire probe solution
Full Mobile-to-PSTN/ISDN interception solution
Surf Proprietary Information

19. GSM/UMTS Circuit-Switched Probe
Mobile Terminal
3.1K Audio Modem
Mobile Core Network
PSTN Fax Machine
Control
IUT-T V.
Standards
PSTN/ISDN
Mobile Radio Network
ETSI/3GPP
Standards
MSC
IWF
A-Interface
TDM stream
ISDN Modem
Two sets of
PCM Streams
GSM/UMTS CS Data Probe
Based on Surf’s field-proven and deployed IWF technology
Surf Proprietary Information

20. 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
A-TRAU, according to TS
High-speed circuit-switched data (HSCSD) support
Split/Combine, multiplexing function as defined in TS
Up to 4 sub-streams per input stream
Data towards 3G
A-TRAU’, as defined in TS
Surf Proprietary Information

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

22. IP Interception Concept
IP Phone/Fax
Modem
Client Side
Voice & Video GW
Voice & Video GW IP
Fax
Media processing board
Media processing board
IP Captured
Streams
Phone
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”
Surf Proprietary Information

23. Supported IP Payload Interception
IP Captured
Streams
IP Interceptor Probe
TIFF
FoIP Output: TIFF Pages
Surf Proprietary Information

24. Supported IP Payload Interception
IP Captured
Streams
IP Interceptor Probe
De-Modulated
data to PPPD
MoIP: PPPD Format (out of demodulated data)
Surf Proprietary Information

25. 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)
Surf Proprietary Information

26. 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)
Surf Proprietary Information

27. Media processing board
Video LI Roadmap
3G-324M Video Phone
H.324 Video Phone
Voice & Video GW
Mobile
PSTN
Media processing board IP
SIP Video Phone
SIP Video Phone
Using Surf Voice/Video transcoding abilities to retrieve Video transmissions
Surf Proprietary Information

28. 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
Surf Proprietary Information

29. Presentation Highlights
Company Profile
Offering for Lawful Interception Market
Roadmap for Lawful Interception Market (Video)
Summary
Surf Proprietary Information

30. 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
Surf Proprietary Information

31. Thank You www.surf-com.com
Developers of infrastructure equipment. Were working with C62 & C64.
Information in this presentation will be relevant for designers of large-medium systems (hundreds of ports).
First problem designers will need to face is bottle necks of HW & SW design. Next problem will be mass deployment, how to manage & support this deployment.
Answer customer requirements for low risk, time-To-Market
Surf Proprietary Information