EXHIBIT 10.1

     

AMENDMENT TO FIFTH AMENDMENT TO

STANDARD OFFICE LEASE

     THIS AMENDMENT is made and entered into this _____ day of March, 2006 2221
BIJOU, LLC, a Colorado Limited Liability Company (hereafter "Lessor") and
AMERICAN TELECONFERENCING SERVICES, LTD., a Missouri corporation, d/b/a PREMIERE
GLOBAL SERVICES (hereafter "Lessee").

     WITNESSETH THE FOLLOWING RECITALS:

     WHEREAS, on February 9, 2006, the parties entered into a Fifth Amendment to
Standard Office Lease wherein the Lease Term was extended from August 31, 2006
to August 31, 2010 and the Leased Premises was modified, effective September 1,
2006, to 115,009 rentable square feet (“RSF”); and

     WHEREAS, the parties have discovered the following mutual mistakes made in
the terms set forth in said Fifth Amendment, to-wit:

  1.      The total RSF for the Leased Premises effective September 1, 2006 was
erroneously identified as 115,009 RSF when the Leased Premises actually will
consist of 114,782 RSF as of September 1, 2006.     2.      The parties failed
to identify that the Lower Level Building Equipment Room consisting of 1,032
useable square feet (“USF”) and the East center staircase containing 185 USF
will become Building Common Areas rather than part of the Leased Premises should
Lessee exercise its Option to “Give-Back Space” as set forth in Article 4 of
said Fifth Amendment,  

     WHEREAS, the parties desire to correct the mutual mistakes
above-identified.

     NOW, THEREFORE, in consideration of the foregoing recitals and the prior
mutual mistakes, the parties agree as follows:

RESTATED OR AMENDED FIFTH AMENDMENT
TO STANDARD OFFICE LEASE.

     To correct the mutual mistakes set forth in the recitals herein, the
parties agree that upon due execution, that certain Restated and Amended Fifth
Amendment to Standard Office Lease,

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attached hereto and incorporated herein as Exhibit A, shall constitute the
parties true Fifth Amendment to Standard Office Lease and said Agreement shall
be substituted for and replace the Agreement based upon the mutual mistakes of
fact as above-referenced and dated February 6, 2006. From and after the
execution thereof, the February 6, 2006 Fifth Amendment to Standard Office Lease
shall be of no further legal effect.

     IN WITNESS WHEREOF, the parties have executed this Amendment to Fifth
Amendment to Standard Office Lease the dates below set forth.

LESSOR:    LESSEE:    2221 Bijou, LLC, a Colorado Limited    American
Teleconferencing Services, Ltd.,  Liability Company    a Missouri corporation,
d/b/a        Premiere Global Services  By:  FIELDHILL PROPERTIES, LLC,        a
Minnesota limited liability company,                  Its:  Chief Manager       
    By:       /s/ Lars Akerberg    By:       /s/ Michael E. Havener 

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       Lars Akerberg           Michael E. Havener 

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Its:       Chief Manager    Its:       Chief Financial Officer 

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  Dated:      March 8, 2006   Dated:       March 13, 2006   

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