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                                                                Exhibit 10.1.30

                               ADVISORY AGREEMENT

     This Advisory Agreement (this "AGREEMENT") is entered into as of the 30th
day of September, 1999 by and among Advanced Telecommunications, Inc., a
Delaware corporation (the "COMPANY"), Bain Capital Partners VI, L.P., a Delaware
limited partnership ("BAIN"), and Stolberg Partners, L.P., a New York limited
partnership ("STOLBERG").

          WHEREAS, Stolberg, Bain and certain funds associated with Bain are
     making significant equity investments (the "EQUITY INVESTMENTS") in the
     Company by purchasing shares of the Company's Series C Preferred Stock, par
     value $0.01 per share, pursuant to the Series C Preferred Stock Purchase
     Agreement dated as of the date hereof by and among the Company, Stolberg,
     Bain and certain funds associated with Bain; and

          WHEREAS, in connection with the Equity Investments, Stolberg and Bain
     will from time to time spend time and incur expenses in connection with
     monitoring the Equity Investments or consulting with, advising or assisting
     the Company.

        NOW, THEREFORE, in consideration of the mutual covenants contained
herein, and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto, intending to
be legally bound, hereby agree as follows:

1.   PAYMENT OF FEES. The Company hereby agrees to:

     a.   during the Term (as defined in Section 3), pay to Bain (or a single
          affiliate of Bain designated by it) an advisory fee in the amount of
          $50,000 per annum, such fee being payable by the Company quarterly in
          advance, the first such payment to be made on September 30, 1999; and

     b.   during the Term, pay to Stolberg (or a single affiliate of Stolberg
          designated by it) an advisory fee in the amount of $50,000 per annum,
          such fee being payable by the Company quarterly in advance, the first
          such payment to be made on September 30, 1999.

2.   EXPENSES. The Company agrees to pay on demand all reasonable costs and
     expenses incurred by Bain or Stolberg or their designated representatives
     in connection with monitoring the Equity Investments or consulting with,
     advising or assisting the Company with respect to the Company's business,
     operations, strategy, marketing, financings, mergers and acquisitions or
     other activities, including without limitation (i) any out-of-pocket
     expenses incurred by Bain, Stolberg or their designated representatives in
     connection therewith, and (ii) the fees and disbursements arising in
     connection therewith of counsel, accountants or other consultants or
     advisors retained by Bain or Stolberg.


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3.   TERM. This Agreement shall continue in full force and effect, unless and
     until terminated by mutual consent of the parties; PROVIDED, HOWEVER, that
     this Agreement shall terminate as to Bain at such time as Bain and its
     affiliates cease to own at least 10% of the outstanding shares of capital
     stock of the Company; and PROVIDED, HOWEVER, that this Agreement shall
     terminate as to Stolberg at such time as Stolberg and its affiliates cease
     to own at least 10% of the outstanding shares of capital stock of the
     Company.

4.   INDEMNIFICATION AND LIABILITY. In consideration of the execution and
     delivery of this Agreement by Stolberg and Bain and the provision of the
     Equity Investments by Stolberg and Bain, the Company hereby agrees to
     indemnify, exonerate and hold each of Stolberg and Bain, and each of their
     respective partners, shareholders, affiliates, directors, officers,
     fiduciaries, employees and agents and each of the partners, shareholders,
     affiliates, directors, officers, fiduciaries, employees and agents of each
     of the foregoing (collectively, the "INDEMNITEES") free and harmless from
     and against any and all actions, causes of action, suits, losses,
     liabilities an damages, and expenses in connection therewith, including
     without limitation attorneys' fees and disbursements (collectively, the
     "INDEMNIFIED LIABILITIES"), incurred by the Indemnitees or any of them as a
     result of, or arising out of, or relating to the Equity Investments, the
     execution, delivery, performance, enforcement or existence of this
     Agreement, the Purchase Agreement or the Stockholders Agreement dated as of
     September 30, 1999 by and among the Company, Stolberg, Bain and certain
     other stockholders of the Company, or the transactions contemplated hereby
     or thereby, except for any such Indemnified Liabilities arising on account
     of such Indemnitee's gross negligence or willful misconduct. None of the
     Indemnitees shall be liable to the Company or any of its affiliates for any
     act or omission suffered or taken by such Indemnitee that does not
     constitute willful misconduct.

5.   AMENDMENTS AND WAIVERS. No amendment or waiver of any term, provision or
     condition of this Agreement shall be effective, unless in writing and
     executed by each of Bain, Stolberg and the Company. No waiver on any one
     occasion shall extend to or effect or be construed as a waiver of any right
     or remedy on any future occasion. No course of dealing of any person nor
     any delay or omission in exercising any right or remedy shall constitute an
     amendment of this Agreement or a waiver of any right or remedy of any party
     hereto.

6.   CHOICE OF LAW. This Agreement shall be governed by and construed in
     accordance with the domestic substantive laws of the State of Delaware
     without giving effect to any choice of law provision or rule that would
     cause the application of the domestic substantive laws of any other
     jurisdiction.

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                                                              Advisory Agreement
                                                              September 30, 1999

     IN WITNESS WHEREOF, each of the parties has caused this Agreement to be
executed on its behalf as an instrument under seal as of the date first above
written by its officer or representative thereunto duly authorized.


THE COMPANY:                            ADVANCED TELECOMMUNICATIONS, INC.


                                        By /s/ Michael A. Donohue
                                           ------------------------------
                                           Name:  Michael A. Donohue
                                           Title: Treasurer


                    [Signatures continue on following page]


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                                                              Advisory Agreement
                                                              September 30, 1999

BAIN:                                   BAIN CAPITAL PARTNERS VI, L.P.


                                        By Bain Capital Investors VI, Inc.,
                                              its general partner


                                        By /s/ Michael A. Krupka
                                           ------------------------------
                                           Name:  Michael A. Krupka
                                           Title: Managing Director


                    [Signatures continue on following page]

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                                                              Advisory Agreement
                                                              September 30, 1999

STOLBERG:                               STOLBERG PARTNERS, L.P.


                                        By SGMS, L.P.,
                                              its general partner

                                        By Stolberg, Meehan & Scano, Inc.
                                              its general partner


                                        By /s/ E. Theodore Stolberg
                                           ------------------------------
                                           Name:  E. Theodore Stolberg
                                           Title: Partner