January 31, 2001 Digital Teleport, Inc. 8112 Maryland Avenue, Suite 400 St. Louis, Missouri 63105 Re: $25,000,000 Senior Secured Revolving Credit Facility Gentlemen: Pursuant to the Second Amended and Restated Agreement between KLT Telecom Inc. ("Lender") and Richard D. Weinstein, Lender agreed to provide or arrange for a revolving credit facility for Digital Teleport, Inc. ("Borrower") in the amount of $25 million to be made available in 2001. While Lender is in the process of arranging for a third party to provide the Borrower with the required credit facility, Lender hereby agrees to make available a bridge senior secured revolving credit facility (the "Loan") to the Borrower on the terms and conditions set forth below and the additional terms, conditions and definitions set forth in Exhibit A attached hereto and incorporated by this reference herein, until such time as the permanent credit facility can be closed. This Commitment supersedes and replaces all prior offers and negotiations regarding the loan. A definitive loan agreement and certain ancillary documents, in form and substance acceptable to Lender, will incorporate the terms of this Commitment and will include representations, warranties, covenants, conditions precedent, events of default, indemnification and other provisions as are customary and appropriate for loans of this type (the "Loan Documents"). 1. Borrower: Digital Teleport, Inc., a Missouri corporation 2. Loan Terms: Principal Up to Twenty-Five Million Dollars ($25,000,000) at Amount: any time. Interest Rate: 91/2% per annum. Amortization The Loan borrowings, includig the entire unpaid And Maturity: principal balance and accrued interest, shall be due and payable upon demand. Underwriting Borrower will pay all out-of-pocket costs and Expenses: expenses incurred by Lender in connection with the proposed Loan promptly upon Lender's submission of a statement to Borrower. This will include, but not be limited to, attorneys' fees and such other expenses and costs as Lender may incur or pay, including without limitation, lien search fees, filing fees, registration and recordation fees or taxes, inspection fees and appraisal costs. All fees and expenses incurred by Lender prior to Closing shall be paid by Lender as a condition to Closing and whether or not the transaction contemplated herein is closed. Fees and expenses incurred by Lender after Closing will be payable as specified in the Loan Documents. Post-Maturity If the Loan is not fully paid upon demand, the entire Interest: outstanding Loan balance shall bear interest at a rate of three (3) percentage points in excess of the then applicable rate. Prepayment: The Loan may be prepaid at any time, without penalty or premium. Transferability: Prohibited without Lender's prior written consent. Use of Proceeds: The proceeds of the Loan shall be used for Borrower's working capital needs and for Borrower's general corporate purposes. Additional The Loan Documents evidencing the Loan shall contain Covenants: covenants customary for this type of transaction, including, without limitation, certain covenants acceptable to the Lender and the Borrower, including, without limitation, (i) the following affirmative covenants: maintenance of existence and collateral, payment of taxes and other obligations, maintenance of insurance, preservation of books and records, inspection rights, use of proceeds, compliance with laws, and further assurances and (ii) the following negative covenants: restrictions on additional indebtedness, additional liens, dividends/distributions (including restrictions on preferred distributions), investments and advances, sales of assets, capital expenditures, mergers and acquisitions, business activities, transactions with affiliates, modification of certain material contracts, ERISA and environmental matters and accounting and fiscal year changes. 3. Security: The Loan will be secured by perfected first priority security interests in and liens on all assets of the 2 Borrower, now owned and hereafter acquired, subject only to permitted liens agreed to by Lender and subject to necessary regulatory approvals (the "Collateral"). 4. Loan Commitment The commitment of Lender to make the Loan will expire Expiration: sixty (60) calendar days after the date of this letter, and the Loan must be closed by that date. In the event the Loan is not closed by that date, all obligations of Lender under this Commitment shall cease. 5. Additional The obligations of Lender to make the Loan shall be Contingencies: expressly contingent on the following conditions: (a) Borrower delivering the most current financial statements regarding Borrower available prior to the date of Closing and certified financial statements annually thereafter. The financial statements provided shall be audited if available, but in any event shall be prepared in accordance with generally accepted accounting principles. (b) Lender's satisfactory inspection of the Collateral. (c) Borrower executing and delivering all Loan Documents required by Lender. (d) Lender's counsel's satisfactory review of the legality, validity, binding effect, and enforceability of all instruments, agreements, and documents used to effect and consummate the Loan and transactions herein contemplated. (e) Borrower providing to Lender such evidence, reports and information as Lender may require concerning the Collateral, Borrower's ownership of the Collateral, the compliance of the Collateral with all laws, ordinances, regulations and legal requirements, and the necessary regulatory approvals for the pledge of the Collateral as security for the Loan. (f) Lender's receipt of satisfactory evidence that the directors of the Borrower have approved the Loan; and all legal and other approvals for the Loan, including for the 3 pledge of the Collateral to secure the Loan, have been obtained. (g) Absence of injunction or temporary restraining order which, in the judgment of the Lender, would prohibit the making of the Loan; and absence of litigation which could reasonably be expected to result in any such prohibition or have a material adverse effect on the Borrower. (h) Evidence satisfactory to the Lender that Lender has a first priority security interest in all Collateral, subject only to permitted liens to be agreed upon. (i) All legal, including income tax, and regulatory matters shall be satisfactory to the Lender. (j) No default or unmatured default or material adverse change or litigation shall exist or have arisen on or prior to the date of the closing of the Loan. (k) Receipt by Lender of other customary closing documentation, including without limitation, legal opinions, applicable governmental and other approvals certificates of existence, lien/bankruptcy/judgment searches, all in acceptable form and substance. 6. Closing: The place, date and time of the execution and delivery of all documents evidencing or relating to the Loan and the effective date of such documents (the "Closing") shall be as soon as possible after Borrower obtains the necessary regulatory approvals for the pledge of the Collateral to secure the Loan and shall be at the sole option of Lender and Lender's counsel. If no other place is specified, such Closing shall be at the offices of Stinson, Mag & Fizzell, P.C., 1201 Walnut, Kansas City, Missouri. The Closing shall occur no later than the expiration date of this Commitment specified above in item 4. 7. Commitment Unless this Commitment is accepted by Borrower and Acceptance: received by Lender, prior to 5:00 p.m., prevailing time in Kansas City, Missouri, not later than ten (10) business days after the date of this letter, the obligation of Lender to make the Loan shall expire. 4 If you wish to accept this Commitment, please sign the enclosed copy of this Commitment where indicated and initial each page, showing your acceptance of the terms and conditions of this Commitment, and return the signed copy to the attention of the undersigned. Time is of the essence of this Commitment. 8. Regulatory Compliance: This Commitment is subject to compliance with all applicable laws and regulations. 9. Governing Law: This Commitment will become effective upon receipt by Lender, at its main office in Overland Park, Kansas, of a copy of this Commitment signed by Borrower. This Commitment shall be governed by Missouri law. This Commitment supersedes all prior agreements between Borrower and Lender relating to the Loan. 10. Notice: ORAL AGREEMENTS OR COMMITMENTS TO LOAN MONEY, EXTEND CREDIT OR TO FORBEAR FROM ENFORCING REPAYMENT OF A DEBT INCLUDING PROMISES TO EXTEND OR RENEW SUCH DEBT ARE NOT ENFORCEABLE. TO PROTECT YOU (BORROWER(S)) AND US (LENDER) FROM MISUNDERSTANDING OR DISAPPOINTMENT, ANY AGREEMENTS WE REACH COVERING SUCH MATTERS ARE CONTAINED IN THIS WRITING, WHICH IS THE COMPLETE AND EXCLUSIVE STATEMENT OF THE AGREEMENT BETWEEN US, EXCEPT AS WE MAY LATER AGREE IN WRITING TO MODIFY IT. KLT TELECOM, INC. By: /s/ Mark R. Schroeder ----------------------------------- Name: Mark R. Schroeder Title: Vice President Accepted this 1st day of February, 2001, by: 5 DIGITAL TELEPORT, INC., a Missouri corporation By: /s/ Gary W. Douglass ---------------------------- Name: Gary W. Douglass Title: Senior Vice President - Finance and Administration and Chief Financial Officer 6 EXHIBIT A ADDITIONAL TERMS AND CONDITIONS Following are additional terms and conditions of the Commitment from Lender to Borrower. 1. DOCUMENTATION - Prior to funding under this Commitment, Borrower shall at its sole cost supply Lender with all the following instruments, documents and assurances, as well as any additional instruments, documents and assurances as Lender or its counsel may require. Each document is to be in form and content satisfactory to Lender and its legal counsel. a. LOAN AGREEMENT. The Loan shall be governed by the terms and conditions of a comprehensive loan agreement prepared by Lender's legal counsel (the "Loan Agreement"), which shall contain such representations, warranties and agreements of Borrower as Lender may require. b. NOTE. The Loan shall be evidenced by a promissory note or notes. c. SECURITY DOCUMENTS. The loan shall be secured by a security agreement, financing statements, and such other documents or agreements as Lender or its counsel deem necessary in order to grant Lender a perfected security interest in the Collateral. All loan documents or agreements shall be prepared by Lender's counsel unless otherwise agreed. d. CERTIFICATE OF TAXES DUE. Borrower shall furnish Lender with a current certificate of taxes due, showing no unpaid taxes or special assessments on the Collateral. e. OTHER DOCUMENTS. Borrower shall execute such other loan documents as Lender shall require. 2. COST AND EXPENSES - Borrower shall pay for all brokerage, loan fees or other fees, expenses, taxes, costs and charges incurred with respect to the Loan, including but not limited to, recording and filing fees, document registration fees and taxes, intangible taxes and legal fees and expenses of Lender, regardless of whether the Loan does or does not close. 3. OTHER FEES AND COMMISSIONS - Lender shall not be required to pay any premium, tax, or other charge or any brokerage fee or commission or similar compensation in connection with the Loan; by acceptance of this Commitment, Borrower agrees to indemnify and save harmless Lender from any and all liability and claims with respect thereto. 4. CREDIT INVESTIGATION - Borrower acknowledges that all credit information it has supplied to Lender is factual and accurate. Borrower hereby authorizes Lender to review its creditworthiness and agrees to provide reasonable information to Lender for this purpose during the term of this Commitment and after the Loan is closed so long as Borrower owes any obligations to Lender. Borrower hereby agrees to notify Lender of any adverse material change in financial condition of Lender during the term of this Commitment or of any other event or occurrence which might adversely affect the ability of Borrower to 7 repay the Loan contemplated by this Commitment. In the event of any such adverse change or event or occurrence, Lender may terminate this Commitment. 5. ADDITIONAL FINANCING OR SALE OF COLLATERAL - Borrower agrees that during the term of the Loan or any extension thereof, there shall be no sale, transfer, lease, or financing of or other lien against the Collateral, other than that either contemplated by this Commitment or in the ordinary course of Borrower's business, without the prior written consent of Lender. In the event such consent is given, any and all leases, financing, and liens shall be absolutely and unconditionally subordinated to Lender's lien. 6. NO ASSIGNMENT - Neither this Commitment nor any loan proceeds shall be assignable by Borrower without the prior written consent of Lender. Any such assignment without such consent shall be void and shall constitute a default hereunder. 7. RIGHT TO INSPECT - Lender and/or its representative shall have the right to inspect the Collateral and shall have access to all records specifically related to the Collateral. Borrower also agrees to pay all fees for an independent accountant to review the books and records of the Borrower for the benefit of Lender, if so required by Lender. 8. NO PARTNERSHIP - Notwithstanding anything to the contrary herein contained, Lender shall not, by this Commitment or by any action taken pursuant hereto, be deemed a partner or joint venturer with Borrower or agent or principal of Borrower. 9. CONTINUITY OF OWNERSHIP - Borrower shall not cause or permit any change in the ownership of the Collateral or a change in the ownership of the interests (legal or beneficial) in Borrower without the prior written consent of Lender. Borrower will not permit an amendment to its charter or by-laws without the written consent of Lender. 10. AGREEMENT TO INDEMNIFY - Borrower agrees to protect, indemnify, defend and save harmless Lender and its directors, officers, agents and employees from and against any and all liability, expense, or damage of any kind or nature and from any suits, claims or demands, including reasonable legal fees and expenses, on account of any matter or thing, whether in suit or not, arising out of this Commitment or in connection herewith. The obligations under this paragraph shall survive any termination or expiration of this Commitment and the Closing of the Loan and repayment thereof. 11. PERSONAL PROPERTY LIST - Prior to Closing, Borrower shall furnish to Lender an itemized list of all of Borrower's assets, including all fixtures, equipment, furniture, furnishings and other personal property owned by Borrower. 12. EVENTS OF DEFAULT - The occurrence of any one or more of the following shall, at the option of Lender, constitute an event of default hereunder, and Lender reserves the right, upon ten (10) days' notice to Borrower, to cancel this Commitment and terminate its obligations hereunder unless within that ten (10) day period the default has been cured to Lender's satisfaction: (a) if Borrower shall have failed to observe and perform any of the terms, covenants, promises, and agreements on its part to be observed and performed under this 8 Commitment, or (b) in the event that, prior to Closing, the financial condition of Borrower shall have changed unfavorably in any material degree from the date hereof; or (c) non-occurrence of any condition precedent to Lender's obligation to close the Loan and/or make any disbursement thereunder; or (d) filing by or against Borrower of a petition in bankruptcy or insolvency or for reorganization, or for the appointment of a receiver or trustee, or the making by Borrower of an assignment for the benefit of creditors, or the filing of a petition for arrangement by Borrower or in the event of any similar act or occurrence. 13. ENTIRE AGREEMENT - No change or modification of this Commitment shall be valid unless the same is in writing and signed by the parties hereto. Until Closing of the Loan, this Commitment contains the entire agreement between the parties hereto, and there are no promises, agreements, conditions, undertakings, warranties, and representations, either written or oral, express or implied, between the parties hereto other than as set forth herein. It is expressly understood and agreed that the parties hereto intend this Commitment to be an integration of all prior and contemporaneous promises, agreements, conditions, undertakings, warranties and representations between the parties hereto with regard to the Loan. 9