To keep a network running effectively under changing operating conditions, IWS provides ongoing RF optimization services to maintain maximum network performance. Services include testing network elements, tuning the network for optimal performance and identifying elements that need to be upgraded or replaced. Once placed in service, wireless networks must be continually updated, recalibrated and tuned. Call volumes and traffic patterns change, trees or buildings may block radio signals and interference may be encountered from neighboring or competing networks or other radio sources. Usage patterns may change because of new rate plans, new features or increasing sales. Optimization is the process of tuning the network to take into account such changes, and often gives rise to maintenance tasks such as antenna changes, new equipment installations or the replacement of substandard or failed components. IWS assists its customers in establishing and maintaining maximum network performance, providing comprehensive testing and re-calibration services, as well as preparation for migration to advanced technologies. Services include:

» Continuously monitoring of network performance
» Periodically testing network elements
» Tuning the network for optimal performance
» Identifying elements that need to be upgraded or replaced
» Providing high level reports to management
» Performing functional and system drive testing, data analysis and interference control
» Test plan development
» Frequency plan revisions
» Equipment capacity expansion analysis
» Interference control
» Acceptance testing and hand-over analysis

IWS collects and processes performance data, recommending and implementing changes that result in the maximum level of network performance.