Airmux-400 Version 2.4 General Availability January 2010

Agenda Introduction Map and Last Mile Network Solution Architecture Market overview Value Proposition Technical review Main Features Applications: Backhaul Access Airmux product line Management Ordering Information Summary

Introduction – MAP and Last Mile Solution ETX ASMi-52 Megaplex-4100 GbE Fiber FCD-E1LC E1s/STM-1 Copper Data Multiplexer solution RIC IP IPmux LRS-16/LRS-102 Fiber ETH DXC-4 Voice E1 Copper OP-1551/1553 Transparent solution ASMi-54 DXC Ethernet SDH/ SONET OP-25/34 Copper n x STM-1/OC3 OP-106/108 Airmux Grooming solution

Introduction – Network Solution Architecture Multiple Point-to-Point Airmux-400 High Capacity Backhaul Cellular Wi-Fi Airmux-200 Medium Capacity Backhaul Corporate Connectivity

Introduction – Market Overview Target Customers: Carriers, alternative carriers and service providers Cellular operators Utility and Transportation Private networks: Military, Government, Banking, Education Market Status: Carriers and Service providers turn to sub-6GHz to complement existing backhaul and access portfolio Need to meet huge growth in demand for broadband Sub-6GHz is the right model to reach out to rural subscribers

Value Proposition OFDM technology (LOS/NLOS) MHS 1+1 Reliable and Flexible OFDM technology (LOS/NLOS) MHS 1+1 Different services (POE only, TDM and Ethernet) Varied Topologies Point-to-Point Multi Point-to-Point Daisy Chain Ring Save more on OpEx and CaPex Easily managed Asymmetrical Bandwidth Long distance Plug & Play Attractive prices

Airmux-400 Highlights TDM and Ethernet services in single box Multiband support – single box for multiple frequencies Point-to-point and multipoint-to-point topologies: HSS – Hub Site Synchronization Robust and reliable - MHS (Monitored Hot Standby) 1+1 Spectrum View Analyzer - Easy and fast installation N-LOS (Non Line of Sight) deployments RADview SNMP network fault management

Hub Site Synchronization (HSS) Ensures simultaneous data transmission for all collocated sites A mix of channel BW, frequencies and services is allowed Supports up to 16 collocated units Supports mixed versions of Airmux devices at the remote sites Airmux-400 /200 Access Units Central Site Airmux-400 Remote Site Airmux-400 Remote Site Airmux-200 Remote Site Airmux-400 Remote Site Airmux-200 Remote Site

Monitored Hot Standby (MHS) 1+1 Providing Redundancy and Backup to TDM services Protection from: Equipment failure (ODU and IDU) Loss of air interface Automatic switch over in less than 50ms Using a primary link and a secondary link: Two Airmux-400 links An Airmux-400 link and an Airmux-200 link with new IDU-E Two Airmux-200 links with IDU-E (single dual-pole antenna can be used)

Spectrum View Part of the Airmux manager application An RF survey tool Support link installation before service activation Activated by the installer Helps selecting the best channel during installation Supports quick and easy installation Indication of: Channels free from radars Channels with radars detected Barred channels (for DFS bands) Scanned and un-scanned channels Channels selected for ACS Notation of the current operational channel

New Products in version 2.4 Airmux-400/50M Total Throughput of 50Mbps Full Duplex comprises of: up to 16xE1’s/T1’s and ETH Maintains Airmux-400 radio performance Traffic is always symmetric Airmux-400/100M Optimized for IP Backhaul application Asymmetric Ethernet throughput up to 100 Mbps aggregate User settings determine the uplink / downlink capacity (from 50% / 50% up to 95% / 5%) Actual Capacity allocation between uplink and downlink traffic is dynamic and determined automatically according to: Actual Ethernet traffic load on each direction Air interface conditions In case of congestion, the system uses the user settings

New Products in version 2.4 Airmux-400/10M Optimized for TDM backhaul User Throughput comprises of: up to 16xE1’s/T1’s + 10 Mbps Maintains Airmux-400 radio performance Traffic is always symmetric Best price for TDM applications Product Line Max. Throughput Target Application Differentiating Feature Airmux-400/10M New 16 x E1s/T1s + 10 Mbps Cellular Backhaul (TDM) Low Price for TDM Airmux-400/50M 50 Mbps symmetric TDM+IP Airmux-400/100M New 100 Mbps asymmetric IP Backhaul 100 Mbps Asymmetric Ready for 100 Mbps Symmetric

Typical Applications - Wimax Backhaul Growing demand for higher capacity Rural expansion and urban leased line replacement will continue to increase Access TDM Access segment turning smaller Strong competition from Point to Multi Point and WiFi systems Private networks Video surveillance market is expected to grow from $4.5B in 2007 to $41B by 2013 Growth is stable through the financial crisis (*Based on ABI market research) POP Egate-100 GbE IP DSLAM xDSL RICi- n x E1/T1 WiMAX BTS Wimax SDH/ SONET PSN Ethernet Microwave Link Airmux n x E1/T1 RICi ETH ETH Services over TDM backbone Central management for the entire network

Typical Applications – Cellular Backhaul Access Service Remote Site NLOS Backhauling Village Central Site Small Town Village Backup to Wired Backhaul Remote Site

Typical Applications - Access for Multi Site Connectivity Central solution for multiple types of CPE’s TDM + Ethernet aggregation Any infrastructure - Copper, fiber and Wireless Reliable and resilient Central management for the entire network Branch PBX E1 ASMi Router Copper FE Central Office Branch Router MP-4100 FE NMS OP-108 Fiber PBX E1 STM-1 GbE Airmux Wireless Branch PBX E1 SDH/ SONET PSN FE Router Airmux

Fixed 10Mbps Ethernet + 4,8,16 E1/T1 Product Line Comparison Airmux Bandwidth (Mbps) Supported Services Range [Km/Mile] HSS Airmux-200L/LC 2Mbps Ethernet 20/12.5 Yes Airmux-200VS 5Mbps/2Mbps Airmux-200 18Mbps Ethernet + 1,2,4 E1/T1 80/50 No Airmux-200HE Airmux-400/10 10Mbps + TDM Fixed 10Mbps Ethernet + 4,8,16 E1/T1 120/75 Airmux-400/50 50Mbps Total Ethernet + 4,8,16 E1/T1 Airmux-400/100 100Mbps* +TDM * 100Mbps Asymmetric. On May/2010 it will support 100Mbps Symmetric by SW upgrade 16

Airmux Management – RADView EMS Airmux management is Integrated into RADview EMS

Ordering String (AIRMUX-400/ODU/…) Ordering Information Ordering Name Supported Frequencies and Regulations (default frequency is in bold) Ordering String (AIRMUX-400/ODU/…) 10 Mbps 50 Mbps 100 Mbps F58F 5.3 GHz (FCC/IC, Universal) 5.4 GHz (FCC, IC, Universal) 5.8 GHz (FCC/IC, MII China, WPC India) 5.9 GHz Universal …F58F/10M …F58F/50M …F58F/100M F2458F 2.4 GHz FCC/IC 5.3 GHz (FCC/IC, Universal) 5.4 GHz (FCC, IC, Universal) …F2458F/10M/EXT …F2458F/50M/EXT …F2458F/100M/EXT F54E 5.3 GHz ETSI 5.4 GHz ETSI 5.8 GHz ETSI …F54E/10M …F54E/10M/EXT …F54E/50M …F54E/50M/EXT …F54E/100M …F54E/100M/EXT F24F 2.4 GHz FCC/IC …F24F/10M …F24F/50M …F24F/100M F54U 5.9 GHz Universal …F54U/10M …F54U/50M …F54U/100M F2454U …F2454U/10M/EXT …F2454U/50M/EXT …F2454U/100M/EXT Red – Integrated Antenna Blue – External Antenna

Airmux – Summary MHS 1+1 support Reliable & Robust High Capacity Long Ranges Flexible & Scalable Cost Effective Simple MHS 1+1 support Mission-critical Work in NLOS (Non-Line-Of-Sight) scenarios 19

Airmux – Summary Variety of Capacities Different Product types Reliable & Robust High Capacity Long Ranges Flexible & Scalable Cost Effective Simple Variety of Capacities Different Product types HSS for Collocation 20

Airmux – Summary Solutions for both: Reliable & Robust High Capacity Long Ranges Flexible & Scalable Cost Effective Simple Solutions for both: Wide area long ranges (Out of City) 21

Airmux – Summary Reliable & Robust High Capacity Long Ranges Flexible & Scalable Cost Effective Simple Optional topologies: star, ring, daisy-chain, cascading Multi-band Support 10/20/40 MHz channel bandwidth

Airmux – Summary Competitive cost structure “Pay as you grow” model Reliable & Robust High Capacity Long Ranges Flexible & Scalable Cost Effective Simple Competitive cost structure “Pay as you grow” model Reduced CAPEX: Multiple services in a single box Wide Range Coverage 23

Airmux – Summary Reliable & Robust High Capacity Long Ranges Flexible & Scalable Cost Effective Simple Simple radio planning, training, installation & maintenance Reduced OPEX: Simple installation Simple maintenance 24

Release Schedule Release Schedule 2010 Q1 Q2 Q3 Q4 Airmux-200 2.40 10/50/100Mbps 2.4.5 100Mbps FD

Roadmap Name Version Date Main Features & Benefits Airmux-400 2.40 - GA 01-10 ETH segmentation 10/50/100Mbps ETH 100Mbps Half Duplex, Asymmetrical HW ready for 10/40MHz channel bands Total capacity of 50Mbps ETH 10Mbps Full duplex HW ready for 10MHz channel band 2.4.5 - GA 05-10 Software license for 100Mbps Full Duplex 100Mbps Full Duplex activation via software 40MHz channel band software activation for Airmux-400/100 10MHz channel band software activation for all Airmux