or "Backwards Compatibility definition
or "Backwards Compatibility means: (i) with respect to new Software Maintenance Releases, Software Upgrades, Software Combined Releases and Software Enhancements, the ability of each of the two (2) prior older versions of Software to remain fully functional in accordance with and up to the performance levels to which each was performing immediately prior to the integration with the new Software Maintenance Release, Software Upgrade, Software Combined Releases and/or Software Enhancement, and the ability of such new Software Maintenance Release, Software Upgrade, Software Combined Release and/or Software Enhancement to interoperate and be compatible with all such functionality of such prior Software versions and with all existing in-service Vendor provided Products already installed in the System; (ii) with respect to all Equipment Upgrades, and Equipment Combined Releases to the extent of that portion of the Equipment Combined Release which is the Equipment Upgrade or the use of which by Owner is not optional without losing the benefit of the Equipment Upgrade (for purposes of this Contract, a "New Equipment Release" means collectively the Equipment Upgrade and such non-optional portion of the Equipment Combined Release), the ability of the existing infrastructure to remain fully functional in accordance with and up to the performance levels to which it was performing immediately prior to the integration with the New Equipment Release, and the ability of the New Equipment Release to interoperate and be fully compatible with all such functionality of such existing infrastructure; and (iii) with respect to each of Software Maintenance Releases, Software Upgrades, Software Combined Releases, Software Enhancements and New Equipment Releases, the ability of such Products to comply with the existing interfaces to other third party equipment already deployed in the System and with respect to which Vendor is already in compliance prior to the introduction of the Software Maintenance Releases, Software Upgrades, Software Combined Releases, Software Enhancements and New Equipment Releases.
or "Backwards Compatibility means (i) with respect to new Software Maintenance Releases, Software Upgrades, Software Combined Releases and Software Enhancements, [***] Nortel Networks Inc. and Cricket Communications, Inc. Proprietary and Confidential Information [*] Certain material (indicated by an asterisk) has been omitted from this document pursuant to a request for confidential treatment. The omitted material has been filed separately with the Securities and Exchange Commission. [***]