001-15687
(Commission
File Number)
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74-2849995
(I.R.S.
Employer Identification No.)
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3201
Cherry Ridge,
Building
C, Suite 300
San
Antonio, Texas
(Address
of Principal Executive Offices)
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78230
(Zip
Code)
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ATSI
Communications, Inc.
Dated:
April 18, 2008
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By:
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/s/ Antonio
Estrada
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Antonio
Estrada
Sr.
VP of Finance &
Corporate
Controller
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