NET-Quintum PRESENTATION Michael Shephard Kiev, Ukraine, March 2009 TELCO Day

Agenda About NET and Quintum NET-Quintum Product line (Promina, VX, Tenor) Product features and Key differentiators VX software suite Support and Service VX in the Ministry of Defense market VX in the Carrier market VX in the Microsoft Unified Communications market Questions and Answers

About NET and Quintum

NET-Quintum Product line (Promina, VX, Tenor)

Product features and Key differentiators

VX software suite

Support and Service

VX in the Ministry of Defense market

VX in the Carrier market

VX in the Microsoft Unified Communications market

Questions and Answers

NET Corporate Overview More than 20 years of mission critical networking Formed in 1983, public in 1987 Listed (NYSE: NWK ) 1988 Industry leader in multi-service Network exchange solutions Deep experience in Voice services, TDM, ATM, IP and signal translation Market share leader in tactical, deployable & access aggregation systems for Federal Government agencies (U.S, U.K, NATO) Network Exchange Solution – Promina & NX Voice Exchange Solution – VX Over 1750 Customers in 75 Countries Global 500 installed base: Established Global Service Organization Logistics and Operations 24 x 7 remote and onsite technical support Sales, SEs and Professional Services N.E.T Global operations Headquarters – Fremont, CA. USA Federal Office – Dulles, VA. USA International Offices in Japan, France, UK , Australia, China, Dubai Acquisition of QUINTUM technologies

More than 20 years of mission critical networking

Formed in 1983, public in 1987

Listed (NYSE: NWK ) 1988

Industry leader in multi-service Network exchange solutions

Deep experience in Voice services, TDM, ATM, IP and signal translation

Market share leader in tactical, deployable & access aggregation systems for Federal Government agencies (U.S, U.K, NATO)

Network Exchange Solution – Promina & NX

Voice Exchange Solution – VX

Over 1750 Customers in 75 Countries

Global 500 installed base:

Established Global Service Organization

Logistics and Operations

24 x 7 remote and onsite technical support

Sales, SEs and Professional Services

N.E.T Global operations

Headquarters – Fremont, CA. USA

Federal Office – Dulles, VA. USA

International Offices in Japan, France, UK , Australia, China, Dubai

Acquisition of QUINTUM technologies

Quintum Profile 9+ year old VoIP pioneer - # 2 market share Quintum has international presence and a worldwide distribution channel Industry Recognition: Inc. 500 NJ Technology Fast 50 2006, 2005 & 2004 – Deloitte Product Differentiation Innovation Award 2007 – Frost & Sullivan “ Quintum demonstrated superior performance in technological innovation, customer service, and strategic product development .” Elka Popova, Global Program Director, Enterprise Communications, Frost & Sullivan

9+ year old VoIP pioneer - # 2 market share

Quintum has international presence and a worldwide distribution channel

Industry Recognition:

Inc. 500

NJ Technology Fast 50

2006, 2005 & 2004 – Deloitte

Product Differentiation Innovation Award

2007 – Frost & Sullivan

NET & Quintum – The Perfect Fit VX & Tenor Series Intelligent Voice Gateways are purpose-built for enabling migration to VoIP and Unified Communications The industry’s broadest voice gateway product line for VoIP and Microsoft Unified Communications Only Cisco sells more voice gateways for the enterprise market Worldwide service & support with VoIP and UC expertise A proven track record

VX & Tenor Series Intelligent Voice Gateways are purpose-built for enabling migration to VoIP and Unified Communications

The industry’s broadest voice gateway product line for VoIP and Microsoft Unified Communications

Only Cisco sells more voice gateways for the enterprise market

Worldwide service & support with VoIP and UC expertise

A proven track record

Enterprise VoIP and Unified Communications Partners

NET and QUINTUM: End to End product portfolio 6 Enterprise AF (2-8 FXS / FXO) BX/DX (2-8 BRI / 1-2 T1/E1) HG Hybrid (1-4 T1/E1) VX 1200 (1-8 T1/E1 ) VX 1800 (4-24 T1/E1) Branch offices Small to Medium

Promina family: Multiservice Platform Multi-service, Multi-transport Flexible, expandable Full product range, highly scalable, designed for growth Proven reliability Stability, redundancy schemes Choose the best technology for each application Full range of applications and services Strong voice capabilities Complete range of physical interfaces Easy to use Video Frame Digital voice Legacy data LAN Packet Analog voice IP Voice over IP

Multi-service, Multi-transport

Flexible, expandable

Full product range, highly scalable, designed for growth

Proven reliability

Stability, redundancy schemes

Choose the best technology for each application

Full range of applications and services

Strong voice capabilities

Complete range of physical interfaces

Easy to use

Promina family: Multitransport WAN Platform Select the most cost effective carrier service in a changing environment Choose the best technology for each application Get access to new carrier services Secure mission critical applications Dedicated leased lines TDM ISDN Frame relay ATM IP Satellite

Select the most cost effective carrier service in a changing environment

Choose the best technology for each application

Get access to new carrier services

Secure mission critical applications

Promina Family Promina 800 Promina 400 Promina 200 Promina 100 NX1000 BBS5000 BBS10000 VoIP Blade (VX) netMS management ATM trunk IP trunk

NET and QUINTUM: End to End product portfolio 6 Enterprise AF (2-8 FXS / FXO) BX/DX (2-8 BRI / 1-2 T1/E1) HG Hybrid (1-4 T1/E1) VX 1200 (1-8 T1/E1 ) VX 1800 (4-24 T1/E1) Branch offices Small to Medium

NET VX series Carrier applications: MOD applications: Enterprise applications for Microsoft UM & UC: VX 1800 VX1800 VX400 VX900 VX 900T VX 1200

VX 1200 – VoIP Platform for Microsoft UM and UC Up to 8 E1, 240 TDM calls and up to 440 IP to IP calls 20 Calls/Sec setup rate ISDN, Q.SIG, R1, R2, CAS H323 and SIP (UDP, TCP, TLS) Any to any protocol conversion with multiple sessions SIP UDP to SIP TLS, TDM to TDM, TDM to IP… Voice transport Audio conversion, Secure transport with SRTP G.723.1, G.711, G.729a, G.726, G.727 and RT Audio (future) No SIP Server, Session Border Controller or Proxy required; one box solution QoS mechanisms (802.1p, Diffserv, IP & SIP options-LQM) Security (ACL, SSH, IPSEC, MD5, rogue packet ejector…) Interactive Voice Response and Application Programming Interface (auto-attendant, speech server…) Management suite (VXWatch and VXBuilder) Specifications Small form factor (1RU, 19’) 4,4 x 38 x 43 cm 100-240V AC Power Supply Integrated CPU 6 x 10/100 Ethernet, 2 USB, console port Windows XP embedded Intel P4 2.8 Ghz (533Mhz FSB) 2 PCI rear Slots for feature cards 1, 2, or 4 Port T1/E1 card Up to 8 x E1s: 240 TDM/VoIP calls Up to 400 VoIP/VoIP calls Field replaceable units Power supply, Memory, Hard Drive, E1/T1 cards Speeds & Feeds

Up to 8 E1, 240 TDM calls and up to 440 IP to IP calls

20 Calls/Sec setup rate

ISDN, Q.SIG, R1, R2, CAS

H323 and SIP (UDP, TCP, TLS)

Any to any protocol conversion with multiple sessions

SIP UDP to SIP TLS, TDM to TDM, TDM to IP…

Voice transport

Audio conversion, Secure transport with SRTP

G.723.1, G.711, G.729a, G.726, G.727 and RT Audio (future)

No SIP Server, Session Border Controller or Proxy required; one box solution

QoS mechanisms (802.1p, Diffserv, IP & SIP options-LQM)

Security (ACL, SSH, IPSEC, MD5, rogue packet ejector…)

Interactive Voice Response and Application Programming Interface (auto-attendant, speech server…)

Management suite (VXWatch and VXBuilder)

Small form factor (1RU, 19’)

4,4 x 38 x 43 cm

100-240V AC Power Supply

Integrated CPU

6 x 10/100 Ethernet, 2 USB, console port

Windows XP embedded

Intel P4 2.8 Ghz (533Mhz FSB)

2 PCI rear Slots for feature cards

1, 2, or 4 Port T1/E1 card

Up to 8 x E1s: 240 TDM/VoIP calls

Up to 400 VoIP/VoIP calls

Field replaceable units

Power supply, Memory, Hard Drive, E1/T1 cards

VX 1800 – VoIP Platform Up to 24 E1, 720 TDM calls and up to 1000 IP to IP calls 20 Calls/Sec setup rate SS7 support (1 local OPC per VX, 4 DPC, up to 4 links) Any to any protocol conversion with multiple sessions SIP UDP to SIP TLS, TDM to TDM, TDM to IP… ISDN, Q.SIG, R1, R2, CAS, H323 and SIP (UDP, TCP, TLS) Voice transport Audio conversion, Secure transport with SRTP G.723.1, G.711, G.729a, G.726, G.727 and RT Audio (future) No Session Border Controller, SIP Server or Proxy required; one box solution QoS mechanisms (802.1p, Diffserv, IP & SIP options-LQM) Security (ACL, SSH, IPSEC, MD5, rogue packet ejector…) Interactive Voice Response and Application Programming Interface (auto-attendant, speech server…) Management suite (VXWatch and VXBuilder) Specifications Small form factor (3 RU) 14 x 43 x 43 cm, 12 kg Hot swap. Redundant AC Power Supply (350W) Integrated CPU 2 x 10/100/Giga Ethernet Embedded XP running from flash 6 PCI rear Slots for feature cards 4 Port T1/E1 T1-SS7; E1-C7 8 Port FXS (future) SAM (security accelerator module) 1 rear slot (future) 1 and 4 Port Serial 1 BRI (data only) Speeds & Feeds

Up to 24 E1, 720 TDM calls and up to 1000 IP to IP calls

20 Calls/Sec setup rate

SS7 support (1 local OPC per VX, 4 DPC, up to 4 links)

Any to any protocol conversion with multiple sessions

SIP UDP to SIP TLS, TDM to TDM, TDM to IP…

ISDN, Q.SIG, R1, R2, CAS, H323 and SIP (UDP, TCP, TLS)

Voice transport

Audio conversion, Secure transport with SRTP

G.723.1, G.711, G.729a, G.726, G.727 and RT Audio (future)

No Session Border Controller, SIP Server or Proxy required; one box solution

QoS mechanisms (802.1p, Diffserv, IP & SIP options-LQM)

Security (ACL, SSH, IPSEC, MD5, rogue packet ejector…)

Interactive Voice Response and Application Programming Interface (auto-attendant, speech server…)

Management suite (VXWatch and VXBuilder)

Small form factor (3 RU)

14 x 43 x 43 cm, 12 kg

Hot swap. Redundant AC Power Supply (350W)

Integrated CPU

2 x 10/100/Giga Ethernet

Embedded XP running from flash

6 PCI rear Slots for feature cards

4 Port T1/E1

T1-SS7; E1-C7

8 Port FXS (future)

SAM (security accelerator module)

1 rear slot (future)

1 and 4 Port Serial

1 BRI (data only)

VX 900 – VoIP & Carrier Platform Specifications Small form factor (1RU) 4,4 x 43 x 46 cm AC Power Supply Integrated CPU 2 x 10/100 Ethernet VoIP Embedded XP running from flash 2 PCI rear Slots for feature cards 1, 2 or 4 Port T1/E1 T1-SS7; E1-C7 8 Port FXS 1 Front slot 1 and 4 Port Serial 1 BRI SAM (security accelerator module) Speeds & Feeds Up to 8 E1, 240 TDM calls and up to 400 IP to IP calls SS7 support (1 local OPC per VX, 4 DPC, up to 4 links) Any to any protocol conversion with multiple sessions SIP UDP to SIP TLS, TDM to TDM, TDM to IP… ISDN, Q.SIG, R1, R2, CAS, H323 and SIP (UDP, TCP, TLS) Voice transport Audio conversion, Secure transport with SRTP G.723.1, G.711, G.729a, G.726, G.727 and RT Audio (future) No Session Border Controller, SIP Server or Proxy required; one box solution QoS mechanisms (802.1p, Diffserv, IP & SIP options-LQM) Security (ACL, SSH, IPSEC, MD5, rogue packet ejector…) Interactive Voice Response and Application Programming Interface (auto-attendant, speech server…) Management suite (VXWatch and VXBuilder)

Small form factor (1RU)

4,4 x 43 x 46 cm

AC Power Supply

Integrated CPU

2 x 10/100 Ethernet VoIP

Embedded XP running from flash

2 PCI rear Slots for feature cards

1, 2 or 4 Port T1/E1

T1-SS7; E1-C7

8 Port FXS

1 Front slot

1 and 4 Port Serial

1 BRI

SAM (security accelerator module)

Up to 8 E1, 240 TDM calls and up to 400 IP to IP calls

SS7 support (1 local OPC per VX, 4 DPC, up to 4 links)

Any to any protocol conversion with multiple sessions

SIP UDP to SIP TLS, TDM to TDM, TDM to IP…

ISDN, Q.SIG, R1, R2, CAS, H323 and SIP (UDP, TCP, TLS)

Voice transport

Audio conversion, Secure transport with SRTP

G.723.1, G.711, G.729a, G.726, G.727 and RT Audio (future)

No Session Border Controller, SIP Server or Proxy required; one box solution

QoS mechanisms (802.1p, Diffserv, IP & SIP options-LQM)

Security (ACL, SSH, IPSEC, MD5, rogue packet ejector…)

Interactive Voice Response and Application Programming Interface (auto-attendant, speech server…)

Management suite (VXWatch and VXBuilder)

VX 900T – VoIP Battlefield Platform (MOD only) Up to 4 x E1s: Up to 120 TDM/VoIP calls Up to 8 FXS ports Up to 96 STU calls Up to 400 VoIP/VoIP calls H.323, SIP and BSP for IP ISDN, Q.SIG, R1, R2, CAS for PSTN Integrated IVR Voice Compression G.723.1, G.711, G.729a, G.726, G.727, RT Audio Up to 96 (T1) or 120 (E1) compressed calls Specifications Small form factor (1RU) 44.5 x 279.4 x 393.7 (mm) Less than 5 kg AC or Wide range DC support Integrated CPU 2 x 10/100 Ethernet VoIP Embedded XP running from flash 2 PCI Slots for feature cards 1, 2, 4 Port T1/E1 4 Port FXS 1 Front slot 1 and 4 Port Serial 1 BRI SAM (security accelerator module) Speeds & Feeds

Up to 4 x E1s: Up to 120 TDM/VoIP calls

Up to 8 FXS ports

Up to 96 STU calls

Up to 400 VoIP/VoIP calls

H.323, SIP and BSP for IP

ISDN, Q.SIG, R1, R2, CAS for PSTN

Integrated IVR

Voice Compression

G.723.1, G.711, G.729a, G.726, G.727, RT Audio

Up to 96 (T1) or 120 (E1) compressed calls

Small form factor (1RU)

44.5 x 279.4 x 393.7 (mm)

Less than 5 kg

AC or Wide range DC support

Integrated CPU

2 x 10/100 Ethernet VoIP

Embedded XP running from flash

2 PCI Slots for feature cards

1, 2, 4 Port T1/E1

4 Port FXS

1 Front slot

1 and 4 Port Serial

1 BRI

SAM (security accelerator module)

VX 400 – VoIP Battlefield “Backpack” Platform (MOD only) Up to 4 FXS ports H.323, SIP and BSP for IP Secure call relay Voice Compression G.723.1, G.711, G.729, G.726, G.727 Specifications Backpack form factor 57.2 x 215.9 x 120.7 (mm) Less than 1.7 kg AC or Battery driven (option) Standalone or optional rack mounting Integrated CPU 2 x 10/100 Ethernet (LAN/WAN) Embedded XP running from flash Status Leds Speeds & Feeds

Up to 4 FXS ports

H.323, SIP and BSP for IP

Secure call relay

Voice Compression

G.723.1, G.711, G.729, G.726, G.727

Backpack form factor

57.2 x 215.9 x 120.7 (mm)

Less than 1.7 kg

AC or Battery driven (option)

Standalone or optional rack mounting

Integrated CPU

2 x 10/100 Ethernet (LAN/WAN)

Embedded XP running from flash

Status Leds

Tenor AX Series Solution For Medium to Large Enterprises Available in 8, 16, 24 and 48 port Tenor AF Series Solution For the SOHO and Medium Branch Offices Available in 2 & 8 ports Tenor BX Series Solution For the Small to Medium Branch Offices Available in 2 thru 8 BRI Port versions (4-16 VoIP Channels) Tenor DX Solution For Medium to Large Enterprises Available in 2 T1 to 8 T1 Versions w/ 8-120 VoIP Ports Tenor CMS Solution For Large Enterprises and Service Providers Available in 8 T1 to 32 T1 Versions w/ 120-960 VoIP Ports Remote Access Management Server Management Solution Remote Management of Tenor Products behind NAT Firewalls Tenor Call Relay Session Border Controller Supports from 60 to 672 simultaneous calls Call Routing Server Centralized Real Time Call Routing Supports 720K BHCA Quintum Tenor Series

Tenor AX Series

Solution For Medium to Large Enterprises

Available in 8, 16, 24 and 48 port

Tenor AF Series

Solution For the SOHO and Medium Branch Offices

Available in 2 & 8 ports

Tenor BX Series

Solution For the Small to

Medium Branch Offices

Available in 2 thru 8 BRI Port versions (4-16 VoIP Channels)

Tenor DX

Solution For Medium to

Large Enterprises

Available in 2 T1 to 8 T1 Versions w/ 8-120 VoIP Ports

Tenor CMS

Solution For Large Enterprises and Service Providers

Available in 8 T1 to 32 T1 Versions w/ 120-960 VoIP Ports

Remote Access Management Server

Management Solution

Remote Management of Tenor Products behind NAT Firewalls

Tenor Call Relay

Session Border Controller

Supports from 60 to 672 simultaneous calls

Call Routing Server

Centralized Real Time Call Routing

Supports 720K BHCA

Softswitch Capabilities Full SIP stack Any to Any protocol conversion Intelligent routing High availability CDR and billing services PBX and carrier Interoperability SS7, ISDN, CAS, SIP & H323 support QSIG transport and tunneling SIP trunking IVR / Scripting DTMF Digit Detection / Audio playback Sophisticated cal handling scenarios Allows unique customer application NET VX Series - Solutions Gateway IP to TDM / TDM to IP Signaling and Audio Conversion Protocol Converter Any to any protocol conversion SIP, H323, BSP, and all TDM Session Border Controller Functionality NAT Transversal Private/Public IP translation Advanced Call Security SRTP / IPSEC / TLS / MD5 Management CDR and SNMP logging Microsoft Interoperability Unified Messaging and Unified Communications

Softswitch Capabilities

Full SIP stack

Any to Any protocol conversion

Intelligent routing

High availability

CDR and billing services

PBX and carrier Interoperability

SS7, ISDN, CAS, SIP & H323 support

QSIG transport and tunneling

SIP trunking

IVR / Scripting

DTMF Digit Detection / Audio playback

Sophisticated cal handling scenarios

Allows unique customer application

Gateway

IP to TDM / TDM to IP

Signaling and Audio Conversion

Protocol Converter

Any to any protocol conversion

SIP, H323, BSP, and all TDM

Session Border Controller Functionality

NAT Transversal

Private/Public IP translation

Advanced Call Security

SRTP / IPSEC / TLS / MD5

Management

CDR and SNMP logging

Microsoft Interoperability

Unified Messaging and Unified Communications

Gateway / Protocol Converter Interface between IP network and PSTN SIP Trunk to an ITSP PSTN IP PBX SIP / H.323 H.323 / SIP TDM SS7 / ISDN / CAS ITSP

Interface between IP network and PSTN

SIP Trunk to an ITSP

Session Border Controller Private to Public internetworking Connecting disparate VOIP Protocols Media framing and Buffering Control Firewall and VLAN traversal NAT Traversal Security Monitoring Session control (B2BUA) Quality of Service Rogue RTP detection Remote Worker behind NAT Private IP WAN Hosted VoIP Solution / ITSP SIP / H.323 H.323 / SIP

Private to Public internetworking

Connecting disparate VOIP Protocols

Media framing and Buffering Control

Firewall and VLAN traversal

NAT Traversal

Security

Monitoring

Session control (B2BUA)

Quality of Service

Rogue RTP detection

Traditional PBX deployment High cost Tie lines No remote worker support Aging technology with expensive support contracts London PSTN PBX San Francisco TDM Tie line PSTN PBX

High cost Tie lines

No remote worker support

Aging technology with expensive support contracts

VX enhanced PBX consolidation Reduces number of PBX’s Enables remote workers Provides Telecom Management Enables migration to VoIP London San Francisco PSTN PBX or IP - PBX IP WAN PSTN Mobile user ITSP

Reduces number of PBX’s

Enables remote workers

Provides Telecom Management

Enables migration to VoIP

Industry leading VoIP bandwidth efficiency BestFlow Signaling Protocol: networking capabilities Ethernet IP UDP VTP FCS/CRC Payload Multiple samples of the same call can be packed in the frame 1 2 2 3 4 5 6 7 Up to 70 VTP frames can be packed into one VTP packet And QoS : Adaptive Jitter management Packet re-sequencing Packet loss concealment Fine tuning parameters

BestFlow Signaling Protocol: networking capabilities

And QoS :

Adaptive Jitter management

Packet re-sequencing

Packet loss concealment

Fine tuning parameters

10 calls 10 calls 10 calls 10 calls 10 calls 10 calls 10 calls 10 calls SIP/H323 SIP/H323 BSP BSP BSP BSP BSP BSP Codec G729 G729 G729 G729 G729 G729 G729 G729 sample 20ms 20ms 20ms 20ms 40ms 40ms 60ms 60ms %silence 0 25% 0 25% 0 25% 0 25% BW per call 24k 18k 12.2k 9.5k 11.5k 8.8k 11.2k 8.5k Packets/sec 500 375 50 50 25 25 16 16 RTP Voice Payload 80k 60k 80k 60k 80k 60k 80k 60k IP overhead 160k 120k 41.6k 34.6k 34.8k 27.8k 32.4k 25.4k Total BW 240k 180k 121.6k 94.6k 114.8k 87.8k 112.4k 85.4k 512k 512k 512k 512k 512k 512k 512k 512k SIP/H323 SIP/H323 BSP BSP BSP BSP BSP BSP Codec G729 G729 G729 G729 G729 G729 G729 G729 sample 20ms 20ms 20ms 20ms 40ms 40ms 60ms 60ms %silence 0 25% 0 25% 0 25% 0 25% BW per call 24k 18k 11.1k 8.3k 11.1k 8.3k 11.2k 8.3k Packets/sec 1100 1100 50 50 42.3 42.1 42.3 42.1 RTP Voice Payload 168k 168k 368k 366k 368k 366k 368k 366k IP overhead 336k 336k 142.4k 141.7k 140.3k 139.5k 140.3k 139.5k Total Calls 21 28 46 61 46 61 46 61

Quintum Tenor Offers Features That Are Unmatched in the Industry MultiPath Call Routing Architecture Transparent deployment with the existing infrastructure SelectNet ™ Assures voice quality meets users expectations PacketSaver ™ Improves bandwidth utilization by up to 57% over typical compression Universal Dial Plan Ability to support customers public and unique PBX dialing requirements GateKeeper/BTBUA Provides call routing and survivability for VoIP networks IVR and RADIUS Call Detail Recording, Authentication and Authorization

MultiPath Call Routing Architecture

Transparent deployment with the existing infrastructure

SelectNet ™

Assures voice quality meets users expectations

PacketSaver ™

Improves bandwidth utilization by up to 57% over typical compression

Universal Dial Plan

Ability to support customers public and unique PBX dialing requirements

GateKeeper/BTBUA

Provides call routing and survivability for VoIP networks

IVR and RADIUS

Call Detail Recording, Authentication and Authorization

Quintum Tenor Supports Industry Standard Protocols For Interoperability Standard IP Network specifications H.323 and SIP protocols with H.323/SIP auto-detection IVR/RADIUS Server support for AAA QoS – IP TOS – DiffServ Standard telephony specification – No tie trunks! Digital – T1 CAS (E&M, Loop Start, Feature Group D) Digital - E1 CAS (R2 MF) BRI - PRI – (National ISDN2, Euro ISDN) Analog - FXS & FXO – Loop Start & Reverse Battery Voice Algorithms: G723.1 – G.711 - G.729ab Fax Support – T.38 and Group 3 up to 14.4 kbps Supplementary Services

Standard IP Network specifications

H.323 and SIP protocols with H.323/SIP auto-detection

IVR/RADIUS Server support for AAA

QoS – IP TOS – DiffServ

Standard telephony specification – No tie trunks!

Digital – T1 CAS (E&M, Loop Start, Feature Group D)

Digital - E1 CAS (R2 MF)

BRI - PRI – (National ISDN2, Euro ISDN)

Analog - FXS & FXO – Loop Start & Reverse Battery

Voice Algorithms: G723.1 – G.711 - G.729ab

Fax Support – T.38 and Group 3 up to 14.4 kbps

Supplementary Services

Tenor VoIP Gateway Configurations VoIP Gateway IP Network Station Side Ports PBX, Keyswitch, Phones VoIP Gateway PSTN IP Network Trunk Side Ports Station or Access Gateway Trunk Gateway

Tenor MultiPath Switch Configuration VoIP MultiPath Switch Configuration Symmetrical configuration with equal numbers of station side ports, trunk side ports, and VoIP ports. The number of VoIP ports is half the total number of telephony ports Calls can be routed in any direction between any of the ports Easy drop-in installation, no PBX changes required VoIP Gateway PSTN IP Network Station Side Ports PBX, Keyswitch, Phones Trunk Side Ports

VoIP MultiPath Switch Configuration

Symmetrical configuration with equal numbers of station side ports, trunk side ports, and VoIP ports.

The number of VoIP ports is half the total number of telephony ports

Calls can be routed in any direction between any of the ports

Easy drop-in installation, no PBX changes required

Tenor Provides VoIP Call Routing Intelligence Intelligently routes VoIP traffic to other offices or hop off network Minimizes modifications of existing network equipment The Tenor MultiPath Switch is transparent to the client’s PBX. Integrates with ANY vendor’s PBX or WAN equipment

Intelligently routes VoIP traffic to other offices or hop off network

Minimizes modifications of existing network equipment

The Tenor MultiPath Switch is transparent to the client’s PBX.

Integrates with ANY vendor’s PBX or WAN equipment

SelectNet™ Transparently Switches from IP Network to PSTN in Real Time Router Tenor Router Tenor PBX PBX Tenor always delivers PSTN voice quality: Real time measurements of IP congestion characteristics. User-defined “IP congestion” threshold parameters Tenor switches calls to the PSTN – transparently in the middle of the call . IP PSTN

Tenor always delivers PSTN voice quality:

Real time measurements of IP congestion characteristics.

User-defined “IP congestion” threshold parameters

Tenor switches calls to the PSTN – transparently in the middle of the call .

PacketSaver™ Offers Substantial Improvement in Bandwidth Utilization PacketSaver™ packs multiple VoIP packets to the same destination into a single IP packet, thereby reducing the total amount of packet overhead and network congestion.

PacketSaver™ Saves Bandwidth! Improves utilization by up to 50% AFTER silence suppression!!! With PacketSaver and Silence Suppression Without PacketSaver With PacketSaver No Silence Suppression

OCS environment Mediation server 1 Mediation server 2 ISDN PRI ISDN PRI Example of High-availability SIP SIP Gateway Gateway PSTN Carrier load balancing for inbound traffic OCS load balancing for outbound traffic On PRI failure, Gateway outage or Mediation server issue, only 50% of traffic available

OCS environment Mediation server 1 Mediation server 2 ISDN PRI ISDN PRI High-availability with NET VX series SIP SIP VX1 VX2 PSTN VX nodes will ensure: least cost routing, load balancing , congestion management for outbound Carrier traffic Peers monitoring with Link Quality management (other VX, Mediation servers and ITSPs) Optimization of outbound call capacity based on available carrier resources ITSP1 ITSP2 SIP-TRUNK H323-TRUNK

VX nodes will ensure:

least cost routing, load balancing , congestion management for outbound Carrier traffic

Peers monitoring with Link Quality management (other VX, Mediation servers and ITSPs)

Optimization of outbound call capacity based on available carrier resources

VXVue Consists of 2 Components VXBuilder GUI Configuration tool VXWatch GUI Monitoring tool Both elements installed on Windows based PC Configuration Backup / Restore

Consists of 2 Components

VXBuilder

GUI Configuration tool

VXWatch

GUI Monitoring tool

Both elements installed on Windows based PC

Configuration Backup / Restore

NET Product Strengths in Government Markets Solutions from the foxhole to the core… Interfaces from 75 bps to OC-192 Multiple traffic types over encrypted trunks Focus on interoperability with multiple encryption technologies Highly efficient over small trunks Multi-service applications over diverse transport Voice, video, and data applications Voice is one of our specialties Priority and preemption schemes for reliability Military unique features Multi-megabit serial trunks designed for burst error conditions Port and trunk side Conditioned Di-phase interfaces. Crypto resync connections on all trunk interfaces Port modules with up to 1 bps granularity Small, portable, and light weight systems

Solutions from the foxhole to the core…

Interfaces from 75 bps to OC-192

Multiple traffic types over encrypted trunks

Focus on interoperability with multiple encryption technologies

Highly efficient over small trunks

Multi-service applications over diverse transport

Voice, video, and data applications

Voice is one of our specialties

Priority and preemption schemes for reliability

Military unique features

Multi-megabit serial trunks designed for burst error conditions

Port and trunk side Conditioned Di-phase interfaces.

Crypto resync connections on all trunk interfaces

Port modules with up to 1 bps granularity

Small, portable, and light weight systems

NET Product Strengths in Government Markets Product Strengths Reliability Flexibility Maintainability Multiple traffic types over the same encrypted trunk Flexible trunk choices Priority and preemption assure mission critical traffic gets through the network, even in congested circumstances

Product Strengths

Reliability

Flexibility

Maintainability

Multiple traffic types over the same encrypted trunk

Flexible trunk choices

Priority and preemption assure mission critical traffic gets through the network, even in congested circumstances

VX Product Strengths in Government Markets Next generation Voice over IP platforms Excellent performance in “challenging” / bandwidth constrained environments Low bandwidth links Satellite shots – especially double hops Air-to-ground environments Poor performing IP networks – i.e. high delay, lots of jitter Resiliency to Packet Loss, Delay, and Jitter Compensation for jitter in network without adding delay Patent pending message relay allows for multiple satellite hops Integrated error correction system fixes packets that are missing, out of order or late Packet loss concealment Leading edge bandwidth efficiency Improved performance Greater density over low speed links Advanced Secure Voice Capability

Next generation Voice over IP platforms

Excellent performance in “challenging” / bandwidth constrained environments

Low bandwidth links

Satellite shots – especially double hops

Air-to-ground environments

Poor performing IP networks – i.e. high delay, lots of jitter

Resiliency to Packet Loss, Delay, and Jitter

Compensation for jitter in network without adding delay

Patent pending message relay allows for multiple satellite hops

Integrated error correction system fixes packets that are missing, out of order or late

Packet loss concealment

Leading edge bandwidth efficiency

Improved performance

Greater density over low speed links

Advanced Secure Voice Capability

Net-centric Architecture The Goal: “On-the-Move” Secure/Assured Distributed Command & Control, Intelligence, etc. Insertion of a Communication Network in Minutes Interoperability Across Waveforms/Encryption/Protocols Global Over-the-Air Key Management/Compromise Recovery, etc. Tactical Internet Intel, Logistics, Ops, etc.

Insertion of a Communication Network in Minutes

Interoperability Across Waveforms/Encryption/Protocols

Global Over-the-Air Key Management/Compromise Recovery, etc.

Tactical Internet

Intel, Logistics, Ops, etc.

US Navy Datacenter VX900 Ship Submarine VX 900 VX900 All nodes have FXS and 4 T1/E1, Up to 100 Secure calls per node EIA-530 – Multiple links EIA-530 @ 2Mbit 4 T1/E1 EIA-530 @2 Mbit T1/E1 is clocked from Serial by VX (Differentiator) VX acts as clocking for whole Ship, IP included Navy IP Network STE Phones PBX PBX

VoIP over Satellite for Mobile units IP Phone (SIP) IP Phone (H323) PC PC IP Phone (SIP) IP Phone (H323) PC PC INMARSAT Terminal INMARSAT Terminal Analog Phone Analog Phone Analog Phone Analog Phone FXS FXS ISDN PRI ISDN S/T Dial on demand PPP Dial on demand PPP ISDN S/T IP data IP data IP data IP data IP data Location 1 Location 2 Location 3 IP Network VX Series VX Series VX Series PSTN Network

Currently Deployed Solution for Embassies PABX SIP/H.323 Phones Analogue Phones Secured Phones Embassy # 3 Embassy # 4 Ethernet Leased Line Embassy # 2 Embassy # 1 ISDN 2B+D INMARSAT E1 E1 netMS VXgate VX 900 VX 900 Ethernet Foreign Office Ethernet Ethernet VX 900 VX 900 VX 900 VX 900 Public ISDN ISP (VPN)

Satellite BW optimization for Alcatel DVB-RCS Satcom POTS Com. Server E1 ABC F link over IP Ethernet Switch Remote sites OXE IPMG Com. Server OXE IP ODU Central Station Ethernet Switch IP Com. Server OXE E1 IPMG Com. Server OXE 1+1 BUC 200W & 1+1 LNB L-band A9780 DVB-RCS Hub A9780 DVB-RCS terminal Antenna 7.6m Antenna 2.4m 10W BUC & LNB Main recorder IP IP PABX Network FH PABX PABX VX900 VX900 MGW PSTN LAN IDU MGW IP router PSTN

Upgrade Plan For Rapid Reaction Corps Network Replace Promina with NX1000 Smaller form factor New higher density cards Can interoperate with Promina NVX (Voice blade for NX) Integration Commercial E1s LOS radio SatCom WAN Interfaces to fixed data systems Secure data systems Interfaces to Allies VX900 Secure Voice VoIP Data Systems Legacy Services VX900 VX900 NX1000 With NVX Promina 800

Replace Promina with NX1000

Smaller form factor

New higher density cards

Can interoperate with Promina

NVX (Voice blade for NX) Integration

MOD Peacekeeping Application Coalition Multinational Command Promina 200 Promina 400 PBX High Speed Data Ports Analog Voice <64Kbps Data Ports Existing Satellite Channel Back to Coalition Command NATO Promina Node 4km Digital Microwave . Digital Microwave 8kM Back to Divisional HQ Meg Link Brigade Battalion Battalion Promina 400 US Uplink US Uplink VX900 Voice over IP Using Standard Phones VX900 Promina/BBS/VX In MOD country VX900 Ethernet LAN Battalion Voice over IP Using Standard Phones High Speed Data Ports Compressed Analog Voice <64Kbps Data Ports Promina 200 VX900 Voice over IP Using Standard Phones High Speed Data Ports Compressed Analog Voice <64Kbps Data Ports High Speed Data Ports Compressed Analog Voice <64Kbps Data Ports Promina 200 VX900 Voice over IP Using Standard Phones High Speed Data Ports Compressed Analog Voice <64Kbps Data Ports Promina 400 1 2 3 4 5 6 7 8 9 * 8 # 1 2 3 4 5 6 7 8 9 * 8 # Voice over IP Calls Home 1 2 3 4 5 6 7 8 9 * 8 # 1 2 3 4 5 6 7 8 9 * 8 #

NATIONAL BORDER CONTROL NETWORK V35 BSP Trunk Why NET VX and Promina platforms: - BSP protocol efficiency on Satcom (BW saving + QoS) - VX PBX like functionalities, “Data compatibility” with Alcatel PBXs FXS and Secure calls support Satellites Modem VX900 “PBX Like” Up to 4 Sync. data ports LAN Satellite Modem VX900 “PBX Like” Up to 4 Sync. data ports LAN Satellite Modem BSP Trunk Satellites Modem V35 N x E1 QSIG N x E1 QSIG IP connectivity TAs TAs Up to 200 Sync. Data ports Up to 200 Sync. Data ports Up to 50 remote sites Up to 50 remote sites Hub site A Hub site B - Advanced TDM data support on IP - Cost saving compared to other solutions IP Network IP Network Up to 8 Analog Phones SIP Phones Modem Up to 8 Analog Phones SIP Phones Modem Promina800 VX Blade Promina800 VX Blade Existing PBX Network TA TA

VX and SS7 standards VX can support 1 local Point code VX is a signaling end point, called SSP (Service Switching Point) VX supports up to four signaling channels, A link (SSP to STP) and/or F link (SSP to SSP), up to four different Point codes VX supports different switch types, basically: ANSI( ANSI88, ANSI92, ANSI95) ITU ( ITU White Book, ITU Blue Book) ETSI ( ETSIv2, ETSIv3) Q.767 (ITU97)

VX can support 1 local Point code

VX is a signaling end point, called SSP (Service Switching Point)

VX supports up to four signaling channels, A link (SSP to STP) and/or F link (SSP to SSP), up to four different Point codes

VX supports different switch types, basically:

ANSI( ANSI88, ANSI92, ANSI95)

ITU ( ITU White Book, ITU Blue Book)

ETSI ( ETSIv2, ETSIv3)

Q.767 (ITU97)

LOW COST FIXED TO MOBILE SERVICE BSP Trunks BSP Trunks E1s ISDN Billing Server Network Management Carrier Network (Traffic collection) Enterprise SOHO E1s Multi SIM card Server GSM Cell VX900 VX900 E1s Multi SIM card Server GSM Cell VX900 E1s Multi SIM card Server GSM Cell VX900 BSP Trunks Goals Provide enterprise customers with cheap rates for fixed to mobile calls powered by mobile to mobile negotiated call rate. Requests Transport and split traffic geographically over multiple GSM cells, at the cheapest cost possible. Why NET VX platform? BSP: Bandwidth optimization BSP: Advanced voice QoS (not reliant on network) Reliability and rapid deployment of products Flexible re-routing capabilities Service Provider Network French PSTN IP VPN 1 IP VPN 2

ENTERPRISE TRAFFIC COLLECTION VIA IP Enterprise IP-PBX Enterprise PBX E1 ISDN SIP Gateway Enterprise PBX BRIs ISDN SIP Gateway E1 ISDN Billing Server Network Management VX900 Goals Deploy an IP based access network to collect Small and Medium Enterprise (SME) voice traffic. Create an IP POP to benefit from ITSP services Why NET VX platform? Previous positive experience with NET equipment - Flexibility, reliability, ease of use - One box solution (no SBC, SIP server, proxy needed) - Easy integration with existing billing platform Comments Multi-site project, up to 160 E1s in 2008 Service Provider Network Internet ITSP2 Network ITSP1 Network SDSL SDSL SDSL French PSTN

Why NET VX platform?

Previous positive experience with NET equipment

- Flexibility, reliability, ease of use

- One box solution (no SBC, SIP server, proxy needed)

- Easy integration with existing billing platform

MOBILE WORKERS PREMIUM VOICE SERVICE Goals Provide Mobile Workers with ONE single telephone number Ensure full reachability whatever media and/or handset is available for incoming calls Ensure flexible call routing decision (handset availability, time of day, caller Id…etc), dynamically modifiable with Web and/or IVR based user interface Provide cheap call rate for outgoing calls INCOMING CALL Why NET VX platform? Provides on-board advanced routing tables Leverages SIP functionalities (Presence, call-forward…etc.) Application Programming Interface (scripting) interfaces with IVR and external routing platform Full SIP stack (register, challenge…etc.) IVR Service Provider Network French PSTN GSM Network Internet GSM Cell WIFI/SIP GSM Smartphone VX900 SIP phone Soft phone SOHO WIFI HOTSPOT (Airport…) Soft phone WIFI/SIP GSM Smartphone Soft phone SDSL REMOTE SITE (Hotel…) GSM Voice-Mail ENTERPRISE PBX extension PBX Voice-Mail Billing Server Advanced routing Web server Network Management API & IVR

SPEAKING CLOCK APPLICATION Goals An incumbent carrier must provide a speaking clock service Why NET VX platform? - VX powerful flexible API with integrated IVR allows an easy development and a rapid deployment with SS7 support, multiple languages, different time zones, call statistics, billing details, extended Web services - Competitive solutions are all based on legacy TDM platform, twice the price ! Comments R.O.I: 6 months !!! Incumbent Carrier PSTN Network Internet VX900 VX900 SS7 SS7 Incumbent Carrier Management network Speaking Clock Public Web server CDR collection & Stats server Management NTP Server API & IVR API & IVR

NEW COUNTRY-WIDE DIALING PLAN Incumbent Carrier PSTN Network VX900 SS7 Incumbent Carrier Management network CDR collection & Stats server Management API & IVR Goals An incumbent carrier wants to provide IVR services to ease dialing plan migration (one additional digit for domestic numbers) Why NET VX platform? - VX powerful flexible API with integrated IVR allows an easy development and a rapid deployment with SS7 support, multiple languages, call statistics, billing details - Leverages an already deployed VX solution (speaking clock) Class5 switch 1/ Call to old number 3/ API/IVR provide new number details And propose automatic re-routing to new number 2/ Call (old number) is redirected by SS7 network to VX 4/ Call (new number) is redirected by VX

TDM TO IP MIGRATION FOR 2 nd TIER CARRIER (step1) TDM Pre-paid Platform SS7 Platform SS7 ISDN ISDN ENTERPRISE Billing Server Goals A TDM based 2nd tier carrier wants to IP enable its existing applications to benefit from VoIP services, i.e. ITSPs, traffic collection, termination & routing. Requests Smooth migration Easy deployment of new services Management and maintenance costs (OPEX) optimization Billing Server Long Distance Carrier 2 French PSTN Carrier Network (Traffic collection) Long Distance Carrier 1 CALL SHOPS

Goals

A TDM based 2nd tier carrier wants to IP enable its existing applications to benefit from VoIP services, i.e. ITSPs,

traffic collection, termination & routing.

Requests

Smooth migration

Easy deployment of new services

Management and maintenance costs (OPEX) optimization

TDM TO IP MIGRATION FOR 2 nd TIER CARRIER (step2) SS7 ISDN ENTERPRISE ENTERPRISE Single Billing Server Single Management Pre-paid service Advanced routing Web server VX2500 Why NET VX platform? Support of all existing TDM applications with multi-protocol conversion One-box solution (no additional SBC, SIP proxy…etc) Single management, single billing platform VX API allows rapid deployment of new services (pre-paid, advanced routing, credit-control, Web access…etc) ISDN H323/SIP Service Provider Network Internet PSTN Network Carrier Network (Traffic collection) ITSP2 Network Long Distance Carrier 1 CALL SHOPS ITSP1 Network CALL SHOPS API & IVR

LONG DISTANCE OVER SATELLITE VX900 VX900 VX900 SS7 ISDN ISDN VX900 BSP Trunk BSP Trunk BSP Trunk BSP Trunks ISDN SIP/H323 Single Billing Server Network Management Goals Provide competitive toll quality voice services over satellite links between African countries and France Why NET VX platform? BSP: Bandwidth optimization + advanced voice QoS over satellite (not reliant to network) One box solution for remote sites, easy deployment without local support Centralized management and billing Service Provider Network TCHAD PSTN Network CAMEROON PSTN Network MALI PSTN Network French PSTN Network Internet ITSP Network

2 nd TIER CARRIER IN MULTIPLE MIDDLE-EAST COUNTRIES BSP Trunk VX2500 SS7 Pre-paid service Advanced routing Credit control Billing Server SS7 Pre-paid service Advanced routing Credit Control Management Billing Server VX900 BSP Trunk BSP Trunk VX900 SS7 Management Billing Server Pre-paid service Advanced routing Credit control VX2500 BSP Trunk Management US ISDN2 Goals A pre-paid calling card distributor for major GSM operators in Middle East decided to develop a new VoIP business (traffic origination & termination) ensuring smooth development of services in the future. Why NET VX platform? Unequalled networking capabilities: BSP protocol, centralized management, remote survivability, SNMP support Toll voice quality (BSP QoS) for long distance & international calls Scripting capabilities: billing, prepaid platform, credit-control, advanced routing decisions SS7, SIP/H323 native support and any to any protocol conversion. KUWAIT PSTN Network USA Network Internet Service Provider Network BAHRAIN PSTN Network JORDAN PSTN Network Service Provider Network Service Provider Network

SIP/PSTN Gateway Reference Architecture Enterprise deploying UC PBX often needs to be upgraded for UC gateway trunks PSTN TDM PBX/IP-PBX & Voicemail UC infrastructure VOIP Gateway

PBX often needs to be upgraded for UC gateway trunks

Any-to-Any Architecture for Seamless Integration Enterprise deploying UC “ Drop in” installation Interconnects UC to legacy PBX and PSTN Only users on UC are routed to OCS Analog device ports available Supports “fax around” Standard SIP devices can connect to all other gateway endpoints All devices can also be routed to/from an ISP or ITSP via IP PSTN TDM PBX/IP-PBX & Voicemail UC infrastructure Analog phones IP Network SIP Trunk to ITSP Analog fax machine SIP/WiFi Clients

“ Drop in” installation

Interconnects UC to legacy PBX and PSTN

Only users on UC are routed to OCS

Analog device ports available

Supports “fax around”

IP-PBX Alcatel OXE SIP TCP SIP UDP SIP TCP SIP TCP Demo Platform Deployed by SI Microsoft OCS Microsoft Exchange 2007 Mediation Server VX1200 Cisco CCM5 Cisco CCM4

Professional Services – Expert to the Experts Installation, Integration, Optimization, Education offerings Multi-vendor environments, interoperable turn-key solutions Ongoing Support – Service Level Agreements 24/7/365 technical assistance, advanced parts replacement Global footprint – Onsite programs with 24 / 8 / 4 Hr arrivals NET’s Global Service Value Proposition LEGEND: Global Support Model = High Touch, Complete Solutions Plan Design Implement Support Optimize Benefits Goals Solutions Consulting Operability Staging Integration Deployment Education Technical Assistance Center Parts Repair or Exchange Field Onsite Coverage Health Checks S/W Upgrades Guidance Pre-Sales Engagement Professional Services Escalation Support

Professional Services – Expert to the Experts

Installation, Integration, Optimization, Education offerings

Multi-vendor environments, interoperable turn-key solutions

Ongoing Support – Service Level Agreements

24/7/365 technical assistance, advanced parts replacement

Global footprint – Onsite programs with 24 / 8 / 4 Hr arrivals

Benefits

Goals

Solutions

Consulting

Operability

Staging

Integration

Deployment

Education

Technical Assistance Center

Parts Repair or Exchange

Field Onsite Coverage

Health Checks

S/W Upgrades

Guidance

Thank You Mike Shephard (michael_shephard@net.com) Igor Koshutin (igor_koshutin@quintum.com) All material presented represents the plans of NET, a publicly traded (NYSE) company. All information represented is subject to change, in part or whole, without notice or consequence. No representation made should be construed as a commitment to deliver or a promise of delivery of any feature or set of features. Timeframes presented are estimates and may change at any time.