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        <link:definition>0206 - Disclosure - Share-Based Compensation</link:definition>
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        <link:definition>0207 - Disclosure - Segment Information and Concentrations of Risk</link:definition>
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        <link:definition>0208 - Disclosure - Earnings Per Share</link:definition>
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        <link:definition>0209 - Disclosure - Commitments and Contingencies</link:definition>
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        <link:definition>0211 - Disclosure - Income Taxes</link:definition>
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  <element id="nvtl_BasisOfPresentationTextualAbstract" name="BasisOfPresentationTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_GoodwillImpairmentTest" name="GoodwillImpairmentTest" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_CorporateDebenturesBondsMember" name="CorporateDebenturesBondsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_MarketableEquitySecuritiesMember" name="MarketableEquitySecuritiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_MarketableSecuritiesMaturityInYears" name="MarketableSecuritiesMaturityInYears" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_IntangibleAssetsTextualAbstract" name="IntangibleAssetsTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_IntangibleAssetsIncludedOperatingCostsAndExpensesTableTextBlock" name="IntangibleAssetsIncludedOperatingCostsAndExpensesTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_GoodwillTextualAbstract" name="GoodwillTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_ScheduleOfAccruedExpensesTableTextBlock" name="ScheduleOfAccruedExpensesTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_AccruedWarrantyObligationsTableTextBlock" name="AccruedWarrantyObligationsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_MarketDevelopmentFundAndPriceProtection" name="MarketDevelopmentFundAndPriceProtection" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nvtl_PayrollAndRelatedExpenses" name="PayrollAndRelatedExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nvtl_NetUnrealizedGainTextualAbstract" name="NetUnrealizedGainTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_NetUnrealizedGain" name="NetUnrealizedGain" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nvtl_MarketableEquitySecuritiesReceivedInSettlementOfNoteReceivable" name="MarketableEquitySecuritiesReceivedInSettlementOfNoteReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nvtl_MobileComputingProductsMember" name="MobileComputingProductsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_EuropeCountriesMember" name="EuropeCountriesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_AsiaCountriesMember" name="AsiaCountriesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_NetRevenuesByGeographicRegionAbstract" name="NetRevenuesByGeographicRegionAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_SegmentInformationAndConcentrationsOfRiskTextualAbstract" name="SegmentInformationAndConcentrationsOfRiskTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_CustomerOneMember" name="CustomerOneMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_CustomerTwoMember" name="CustomerTwoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_CustomerThreeMember" name="CustomerThreeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_EarningsPerShareTextualAbstract" name="EarningsPerShareTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_UnrealizedGainOnCashEquivalentsAndMarketableSecuritiesNetOfTax" name="UnrealizedGainOnCashEquivalentsAndMarketableSecuritiesNetOfTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nvtl_CommitmentsAndContingenciesTextualAbstract" name="CommitmentsAndContingenciesTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_CompanyMember" name="CompanyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_CommitmentsAndContingenciesAdditionalTextualAbstract" name="CommitmentsAndContingenciesAdditionalTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_SeptemberFifteenthTwoThousandEightMember" name="SeptemberFifteenthTwoThousandEightMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_SeptemberEighteenthTwoThousandEightMember" name="SeptemberEighteenthTwoThousandEightMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_IncomeTaxesTextualAbstract" name="IncomeTaxesTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_ReviewOfTaxableIncome" name="ReviewOfTaxableIncome" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_InterestExpenseRelatedToUncertainTaxPositions" name="InterestExpenseRelatedToUncertainTaxPositions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nvtl_AssetsByGeographicRegionAbstract" name="AssetsByGeographicRegionAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_ShortTermMarketableSecuritiesMember" name="ShortTermMarketableSecuritiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_LongTermMarketableSecuritiesMember" name="LongTermMarketableSecuritiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_BasisOfPresentationLineItems" name="BasisOfPresentationLineItems" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_IntangibleAssetsIncludedOperatingCostsAndExpensesAbstract" name="IntangibleAssetsIncludedOperatingCostsAndExpensesAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_CumulativeLossPosition" name="CumulativeLossPosition" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_UncertainIncomeTaxPositionUnrecognized" name="UncertainIncomeTaxPositionUnrecognized" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_LossOnSaleOrDisposalOfFixedAsset" name="LossOnSaleOrDisposalOfFixedAsset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nvtl_EuropeLatinAmericaAndAsiaMember" name="EuropeLatinAmericaAndAsiaMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_UnitedStatesAndCanadaMember" name="UnitedStatesAndCanadaMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_LatinAmericaMember" name="LatinAmericaMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_CashEquivalentsAndMarketableSecuritiesHeldAtBank" name="CashEquivalentsAndMarketableSecuritiesHeldAtBank" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nvtl_AcquiredIntangibleAssetsAccumulatedAmortization" name="AcquiredIntangibleAssetsAccumulatedAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nvtl_GoodwillAndIntangibleAssetsImpairmentLosses" name="GoodwillAndIntangibleAssetsImpairmentLosses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nvtl_CashPaidDuringYearAbstract" name="CashPaidDuringYearAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_CashFlowNonCashInvestingActivitiesDisclosureAbstract" name="CashFlowNonCashInvestingActivitiesDisclosureAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_BuildingRentIncentivesToFundLeaseholdImprovements" name="BuildingRentIncentivesToFundLeaseholdImprovements" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nvtl_EarningsPerShareTable" name="EarningsPerShareTable" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_EarningsPerShareLineItems" name="EarningsPerShareLineItems" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_NetLossPerShareAbstract" name="NetLossPerShareAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_RevenueFromExternalCustomersByGeographicRegion" name="RevenueFromExternalCustomersByGeographicRegion" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_PaymentOfSharebasedCompensationAwardsAbstract" name="PaymentOfSharebasedCompensationAwardsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="nvtl_EstimatedGoodwillImpairmentLoss" name="EstimatedGoodwillImpairmentLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
</schema>
