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                      Low Capacity Community 
                        GSM Networks
  Delivering Affordable, Compact GSM 
                        Solutions to Meet Low Capacity Requirements
   Experience shows that traditional high 
                        capacity, large scale wireless networks are too costly 
                        and time consuming to deploy in areas considered too 
                        small, too remote, too low-density or too poor for 
                        cellular services. interWAVE's unique solution enables 
                        GSM network deployment to be viable in these 
                        markets.
   interWAVE's portfolio is designed to offer a 
                        low entry cost and highly scaleable solution that 
                        satisfies low capacity coverage requirements using GSM 
                        technology. interWAVE's technology enables operators to 
                        open up new revenue opportunities by quickly and cost 
                        effectively deploying standalone GSM networks in 
                        community areas. interWAVE offers competitive solutions 
                        for start-up network configurations from 100 to 200,000 
                        subscribers. As subscriber demand increases, the initial 
                        deployment can easily expand into a system that is 
                        capable of supporting more subscribers.
   A Common Hardware Platform for all GSM 
                        Functionalities
  
  The core of 
                        interWAVE's GSM solution is our Network-In-A-Box™ (NIB). 
                        The NIB is a fully integrated solution for small 
                        capacity requirements, combining both radio and 
                        switching capabilities in a cabinet that is not much 
                        larger than a standard PC tower. Based on an expandable 
                        architecture, this hardware platform can scale from a 
                        NIB to a network requiring multiple Mobile Switching 
                        Centers (MSC/VLR/HLR), Base Station Controllers (BSC), 
                        and Base Transceiver Stations (BTS). All GSM 
                        functionalities can be either incorporated in a single 
                        cabinet or housed in their own separate 
                        cabinets.
   A standard interWAVE's WAVEXpress 
                        configuration (MSC/HLR/VLR, BSC & BTS), as 
                        represented in the diagram below, can support up to 5 
                        BSC, 16 BTS or 30 Transceivers (TRX). It can 
                        inter-operate with existing network infrastructures. Its 
                        standard interfaces allow seamless network integration 
                        to other cellular networks and wireline telephone 
                        networks through ISDN, ISUP, R2 and MAP 
                        interfaces.
  
  
   During the expansion phases, the initial 
                        investment remains protected. As the network grows 
                        beyond the capacity of a WAVEXpress configuration, 
                        multiple configurations can be incrementally built out 
                        and linked together to form a stand-alone GSM 
                        network.
   Key Benefits to the Operator
   Because of its unique architecture, 
                        interWAVE's wireless GSM networking solution delivers 
                        unparalleled value and provide the following 
                        benefits: 
                        
                          - Provides low entry cost GSM products. 
                          
 - Accelerates return on investment: interWAVE's 
                          technology provides operators an incremental "build as 
                          you grow" approach, allowing network growth as 
                          opportunity demands. 
                          
 - Offers scalability. Operators must be able to 
                          scale their networks to meet constantly changing 
                          demands. The scaling flexibility of interWAVE's 
                          products allows operators to quickly expand their 
                          networks, adapt to market needs (capacity on demand), 
                          and aggressively grow their business, with minimum 
                          financial risk. 
                          
 - Allows seamless integration to existing wireless 
                          and wireline network infrastructures. 
                          
 - Allows unmatched speed of deployment and operation 
                          based upon a fully functional compact solution with a 
                          common hardware platform for all GSM functionalities. 
                          Deploying and activating a complete GSM network in an 
                          aggressive timeframe gives operators rapid time to 
                          market - a key advantage where multiple service 
                          providers are competing for the same subscriber base. 
                          
 - Offers a migration path to GPRS and 3G 
                          technologies. 
    Related white paper: Steps to Becoming a GSM 
                        Operator
   Related case study: Island Case Study: Federated . . 
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