Common use of WAVEView OMC Clause in Contracts

WAVEView OMC. APPLICATIONS Configuration Management - Region-wide configuration database - Modification of network elements and network parameters - Remote download of software to network elements - Audit functions that upload current configuration of network elements - Region map that displays the network elements and connectivity - Addition and deletion of network elements (MSC, BSC, and BTS) - Full support of cell and frequency configuration management - Region map displays current network element states Fault Management - Real-time monitoring of the network for faults and problems - Visual indication of problem areas using detailed views - Polling of the wireless access network to determine the status of the operations and maintenance communication links - Maintenance of daily event logs - Tracking of active alarm conditions - Audible alarms based on severity - Clearing and acknowledgment of alarms - Alarm seventy can be altered Performance Management - Collects network performance statistics - Building of a knowledge base of network resource usage for strategic business and network planning decisions - Use of performance data for troubleshooting and monitoring network performance Data Import and Export - Integrates with existing network management support tools - Import cell configuration data from existing cell planning tools - Export of network performance data and statistics to cell planning tools - Periodic collection BSC/BTS statistics into ASCII files for export to external tools - Export of historical event and alarm logs Access Security Management - Definition of user access privileges settable by the administrator - Definition of different classes of WAVEView users, privileges, and passwords - Two levels of security control beyond normal UNIX login security * Password authorized use of WAVEView * User restrictions based on domains and object class access control DEVELOPMENT PLAN

WAVEView OMC. APPLICATIONS Configuration Management - Region-wide configuration database - Modification of network elements and network parameters - Remote download of software to network elements - Audit functions that upload current configuration of network elements - Region map that displays the network elements and connectivity - Addition and deletion of network elements (MSC, BSC, and BTS) - Full support of cell and frequency configuration management - Region map displays current network element states states' Fault Management - Real-time monitoring of the network for faults and problems - Visual indication of problem areas using detailed views - Polling of the wireless access network to determine the status of - the operations and maintenance communication links - Maintenance of daily event logs - Tracking of active alarm conditions - Audible alarms based on severity PAGE 55 OF 58 - Clearing and acknowledgment of alarms - Alarm seventy can be altered Performance Management - Collects network performance statistics - Building of a knowledge base of network resource usage for strategic business and network planning decisions - Use of performance data for troubleshooting and monitoring network performance Data Import and Export - Integrates with existing network management support tools - Import cell configuration data from existing cell planning tools - Export of network performance data and statistics to cell planning tools - Periodic collection BSC/BTS statistics into ASCII files for export to external tools - Export of historical event and alarm logs Access Security Management - Definition of user access privileges settable by the administrator - Definition of different classes of WAVEView users, privileges, and passwords - Two levels of security control beyond normal UNIX login security * - Password authorized use of WAVEView * - User restrictions based on domains and object class access control PAGE 56 OF 58 DEVELOPMENT PLANPLAN FOR BSS RELEASES MAIN FEATURES ADDITIONAL FEATURES - No cycling of MS power on handover - SMS Cell Broadcast - MS Dynamic Power Control on - Handover on congestion with threshold RxQual and RxLev - Force handover to second best cell - Separate Settable HO Margins - DTX downlink (uplink by MS) - MS fast Power Down - Call Trace - Speed Sensitive microcell HO - Double BCCH allocation lists - GSM 12.21 standard Abis interface - Call Queuing - Racal BSS Testing Support - Idle Channel interference - TRX Hot Swap measurement and notification - Enh Network Perf Statistics Module - Very early assignment Serial Number Id - Handover margins for each cell - Non-Encrypted Software Release - GSM Data Services

WAVEView OMC. APPLICATIONS Configuration Management - Region-wide configuration database - Modification of network elements and network parameters - Remote download of software to network elements - Audit functions that upload current configuration of network elements - Region map that displays the network elements and connectivity - Addition and deletion of network elements (MSC, BSC, and BTS) - Full support of cell and frequency configuration management - Region map displays current network element states states' Fault Management - Real-time monitoring of the network for faults and problems - Visual indication of problem areas using detailed views - Polling of the wireless access network to determine the status of - the operations and maintenance communication links - Maintenance of daily event logs - Tracking of active alarm conditions - Audible alarms based on severity PAGE 55 OF 58 - Clearing and acknowledgment of alarms - Alarm seventy can be altered Performance Management - Collects network performance statistics - Building of a knowledge base of network resource usage for strategic business and network planning decisions - Use of performance data for troubleshooting and monitoring network performance Data Import and Export - Integrates with existing network management support tools - Import cell configuration data from existing cell planning tools - Export of network performance data and statistics to cell planning tools - Periodic collection BSC/BTS statistics into ASCII files for export to external tools - Export of historical event and alarm logs Access Security Management - Definition of user access privileges settable by the administrator - Definition of different classes of WAVEView users, privileges, and passwords - Two levels of security control beyond normal UNIX login security * - Password authorized use of WAVEView * - User restrictions based on domains and object class access control PAGE 56 OF 58 DEVELOPMENT PLANPLAN FOR BSS RELEASES MAIN FEATURES ADDITIONAL FEATURES - No cycling of MS power on handover - SMS Cell Broadcast - MS Dynamic Power Control on - Handover on congestion with threshold RxQual and RxLev - Force handover to second best cell - Separate Settable HO Margins - DTX downlink (uplink by MS) - MS fast Power Down - Call Trace - Speed Sensitive microcell HO - Double BCCH allocation lists - GSM 12.21 standard Abis interface - Call Queuing - Racal BSS Testing Support - Idle Channel interference - TRX Hot Swap measurement and notification - Enh Network Perf Statistics Module - Very early assignment Serial Number Id - Handover margins for each cell - Non-Encrypted Software Release - GSM Data Services 2. BSS Release 3.0 4. BSS Release 5.0 ADDITIONAL FEATURES ADDITIONAL FEATURES - WAVEXpress BSC Capacity - New E1/T1 module for up to 8 BTS per BSC E1/T1 card Increase - -16Kb switching - -30 TRXs per BSC - Enhanced Full Rate Vocoder - -15 BTSs per BSC - Cost Reduced TRX with - Antenna Receive Diversity - -frequency hopping - Dynamic Power Control - -forward and reflected - Directed Retry (phase 1 and 2 power detection mobiles) - Paging Group Reorganization - 3 TRXs per WAVEXpress BTS - Adjustment of uplink/downlink volume - TurboWAVE Integrated high power - Automatic E1/T1 module hardware occupancy detect - -2-16 ▇▇▇▇▇ - More flexible SDCCH Channel configuration - -900 MHz and 1800 MHz - Dynamic Channel Allocation (DCA) - WAVEXpress BTS Daisy Chain - HDSL Modem (OEM Adjunct) DEVELOPMENT PLAN FOR NSS RELEASES 1. NSS Release 2.0 (Currently Shipping) 3. NSS Release 4.0 (Calendar MAIN FEATURES ADDITIONAL FEATURES - Support (2) BSC; (5) BTS; (2) TRX each - Support (5) BSC (BSS 4.0 rules), - 500 Subs @ 0.1 Erlang max 30TRX - 'A' Interface to interWAVE BSC - 1,000 Subs @ 0.1 Erlang - HLR/VLR Support - 2,000 Subs @ 0.05 Erlang - Authentication - Combo Switeh/BSC/BTS - Ciphering - Support for (2) TRX - Emergency Call - 200 Subs @ 0.025Erlang - ISDN PRI Trunks - integrated HLR - Dial Plan (E. 164) - modular expansion - DTMF / MF Tones - Private A-Link Multiplexer - Call Detail Records (CDRs) (PALIM) - Abbreviated Dial Plan - QSIG (Adjunct) - MFCR2 Trunks - Call Forwarding Conditional - Call Barring (Operator Determined) - Call Waiting - Call Hold - Call Transfer 2. NSS Release 3.0 - Trunk Group Management - SMS (in investigation) ADDITIONAL FEATURES - Voice Mail (in investigation) - Integrated OMC-R-S-HLR - MAP for central HLR - Call Forwarding Unconditional - Data/Fax (intra WX) - Callid (CLIR/CLIP) 4. NSS Release 5.0 - Echo Cancellation via external box ADDITIONAL FEATURES - Performance Measurements - Support (5) BSC (BSS 5.0 rules), max 60TRX - 2,000 Subs @ 0.1 Erlang - 5,000 Subs @ 0.04 Erlang - Call Conference (multi-party) - Multi-site WAVEXchange Networks - 16 Kb switching AMENDMENT NO. 2 TO OEM AGREEMENT This Amendment No. 2 (this "Amendment") to the Revised OEM Purchase Agreement between the parties effective March 27. 1998 and previously amended by an Amendment No. 1 effective April 29, 1998 (together the "Agreement") is made and entered into this 21st day of April, 1999 by and between Northern Telecom Limited, a company incorporated under the laws of Canada, and interWAVE Communications International, a B. V. company incorporated under the laws of the Netherlands. The parties agree as follows: 1. The Agreement is amended by deleting Schedules 2, 9 and 10 and replacing them with the attached Schedules. 2. Except as otherwise provided in this Amendment, all terms and conditions of the Agreement remain in full force and effect. 3. This Amendment may be executed in a number of counterparts, and all such counterparts taken together shall constitute one and the same agreement.