EXHIBIT 10.6(a)


December 4, 1997




OVERNIGHT COURIER
Herman [Butch] A. Charlton
17671 Addison Road, # 1506
Dallas, Texas  75287

Dear Butch:

This letter confirms our conversation of Tuesday, March 25, 1997 in which we
agreed to the following in connection with FiberSouth, Inc.'s employment offer
to you dated March 20, 1997 [the "Offer"]:

         Section 1, Commencement of Employment, is revised to state that you
         will assume the position of President of FiberSouth, Inc. ["FSI"] no
         later than April 21, 1997.

         Section 4.2.1., Signing Bonus, is revised to provide that the bonus
         will be payable in two [2] equal installments.

         Other than these revisions, all other terms and conditions of the Offer
         remain unchanged and are acknowledged and accepted by you.

Please do not hesitate to call us for any assistance with the relocation
process.

Sincerely,



Anthony M. Copeland
Vice President/General Counsel

/spb




                                                                EXHIBIT 10.6 (b)

                                                          (LOGO FIBERSOUTH
                                                       COMMUNICATIONS GOES HERE)
March 20, 1997

OVERNIGHT COURIER
Butch Charlton
17671 Addison Road, # 1506
Dallas, Texas  75287

Dear Mr. Charlton:

I am pleased to offer you the position of President of FiberSouth, Inc. The
following outlines the details of what we discussed:

1.       Commencement of Employment: On or before, but no later than April 15,
         1997 you will assume the position of President of FiberSouth, Inc.
         ["FSI"] at the FSI corporate office in Raleigh, North Carolina.

2.       Term of Employment: FSI and you agree that your initial term of
         employment shall be for two [2] years from the first day of your
         employment ["Initial Term"], subject, however, to prior termination of
         your employment as provided below. Except as provided below, the
         Initial Term may be extended from year to year, and your compensation
         shall be reviewed by FSI annually at the end of each fiscal year.

3.       Stock in FSI: Subject to the FSI Board of Directors entering into a
         recapitalization of FSI, you shall receive stock in FSI equal to the
         then appraised value of One Hundred Thousand Dollars [$100,000.00]. Any
         FSI stock given to you prior to a public offering shall revert back to
         FSI upon termination of your employment with FSI, at a cost to FSI not
         to exceed the then appraised value.

4.        Compensation:

         4.1.     Base Salary: For performance of your duties during the first
                  two [2] years as President of FSI, FSI shall pay as salary to
                  you the base amount of One Hundred Seventy-Five Thousand
                  Dollars [$175,000.00] per year during the Initial Term. This
                  base salary shall be payable in equal installments from the
                  date of employment in accordance with FSI's normal payroll
                  periods.

         4.2.      Bonuses:

                  4.2.1.   Signing Bonus: FSI will pay to you a signing bonus in
                           the total amount of Twenty Thousand Dollars
                           [$20,000.00]. This signing bonus shall be payable in
                           four [4] equal installments, [in checks separate from
                           the base salary installment checks], less appropriate
                           withholding and deductions, from the date of
                           employment at FSI's normal payroll periods.

                  4.2.2.   First Year Bonus: FSI shall pay you a guarantied
                           bonus in the total amount of Fifty Thousand Dollars
                           [$50,000.00], at the conclusion of the first year of
                           employment, subject to the terms and conditions of
                           employment set forth below.

Butch Charlton
Page 2
March 20, 1997

                           This first year bonus shall be paid in one [1]
                           installment, less appropriate withholding and
                           deductions.

5.        Benefits:

         5.1.     Vesting: You shall be fully vested in all FSI pension and
                  retirement plans in effect as of the date of employment.

         5.2.     Vacation: You shall be entitled to a three [3] week vacation
                  each year. Entitlement to vacation pay in lieu of vacation and
                  waiver of vacation time not used shall be in accordance with
                  FSI's normal personnel policies and procedures.

         5.3.     Group Health, Life Insurance and Disability Benefits: FSI
                  shall provide you participation in medical accident and
                  health, income continuation and life insurance programs as are
                  generally available to other employees of FSI.

6.        Relocation Assistance:

         6.1.     Moving Expenses: FSI agrees to reimburse you for all
                  reasonable moving expenses which have received prior written
                  approval.

         6.2.     Housing Expenses: FSI shall reimburse you for temporary
                  housing in Raleigh for a period of time not to exceed three
                  [3] months from the first day of employment.

7.        Termination:

         7.1.     If your employment is terminated prior to the completion of
                  any term for any of the reasons specified below, you shall be
                  entitled to the salary you earned prior to the termination
                  date, computed pro rata up to and including that date, but you
                  shall be entitled to no further compensation or bonuses of any
                  type. Further, your rights to any stock and/or stock options,
                  if any, shall terminate.

         7.2.     FSI shall have the right to terminate your employment upon the
                  occurrence of any one or more of the following events:

                  7.2.1.   Falsification of FSI documents and records, including
                           but not limited to financial/revenue reports of all
                           types, employment applications, time sheets, or sales
                           agreements;

                  7.2.2.   Revealing proprietary FSI or customer account
                           information to unauthorized FSI or non-FSI personnel,
                           except as may otherwise be required by law;

                  7.2.3.   Reporting to work under the influence of any
                           controlled substance, or the use of any controlled
                           substance on FSI property, except for alcohol
                           provided by or on behalf of FSI at FSI-sponsored
                           events;

                  7.2.4.   Misuse, misappropriation or unauthorized removal of
                           FSI property or the property of any FSI personnel;

Butch Charlton
Page 3
March 20, 1997


                  7.2.5.   The making of a bona fide charge of discrimination or
                           sexual harassment by another employee of FSI, or by
                           another attendee while at a FSI-sponsored event, or
                           at any event as a representative of FSI;

                  7.2.6. Verbal or written communications that contain:

                  7.2.7.   Language or material that may be offensive or
                           disruptive, including but not limited to:

                           (bullet)  sexual comments or images;
                           (bullet)  racial slurs or dialects;
                           (bullet)  gender-specific comments; or
                           (bullet)  comments that would or could offend someone
                                     on the basis of age, religious beliefs,
                                     national origin or disability.

                  7.2.8.   Immoral or  indecent  conduct  on FSI  property,
                           at a  FSI-sponsored  event,  or while acting as a
                           representative of FSI;

                  7.2.9.   Willful acts which may result in danger or injury to
                           personnel or damage to FSI property or product, or
                           the property of FSI personnel;

          We look forward to working with you. Please do not hesitate to call me
if you have any questions.

Sincerely,

/s/ Anthony M. Copeland

Anthony M. Copeland
Vice President/General Counsel

/spb