This excerpt taken from the NTII 8-K filed Sep 12, 2007.
Satisfaction And Discharge
Section 4.01 Satisfaction and Discharge of Indenture. This First Supplemental Indenture shall cease to be of further effect (except as to any surviving rights of registration of transfer or exchange of Securities herein expressly provided for) and the Trustee, on demand of and at the expense of the Company, shall execute proper instruments acknowledging satisfaction and discharge of this First Supplemental Indenture, when
(i) all Securities theretofore authenticated and delivered (other than (A) Securities which have been destroyed, lost or stolen and which have been replaced or paid as provided in Section 3.08 and (B) Securities for whose payment money has theretofore been deposited with the Trustee in trust or segregated and held in trust by the Company and thereafter repaid to the Company or discharged from such trust as provided in Section 9.02) have been delivered to the Trustee for cancellation; or
(ii) all such Securities not theretofore delivered to the Trustee for cancellation have become due and payable and the Company has deposited or caused to be deposited with the Trustee as trust funds in trust for the purpose an amount sufficient to pay and discharge the entire indebtedness evidenced by such Securities not theretofore delivered to the Trustee for cancellation;
(b) the Company has paid or caused to be paid all other sums payable hereunder by the Company; and
(c) the Company has delivered to the Trustee an Officers Certificate and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating to the satisfaction and discharge of this First Supplemental Indenture have been complied with.
Notwithstanding the satisfaction and discharge of this First Supplemental Indenture, the obligations of the Company to the obligations of the Company to the Trustee under Section 6.06 herein and, if money shall have been deposited with the Trustee pursuant to clause (a)(ii) of Section 4.01, the obligations of the Trustee under Section 4.02 and the last paragraph of Section 9.02 shall survive such satisfaction and discharge.
Section 4.02 Application of Trust Money. Subject to the provisions of the last paragraph of Section 9.02, all money deposited with the Trustee pursuant to Section 4.01 shall be held in trust and applied by it, in accordance with the provisions of the Securities and this First Supplemental Indenture, to the payment, either directly or through any Paying Agent (including the Company acting as its own Paying Agent) as the Trustee may determine, to the Persons entitled thereto, of the Principal Amount and Interest for whose payment such money has been deposited with the Trustee.