Exhibit 31.2

                            CERTIFICATION PURSUANT TO
           18 U.S.C. SECTION 1350, AS ADOPTED PERSUANT TO SECTION 302
                        OF THE SARBANES-OXLEY ACT OF 2002

I, Antonio Estrada, certify that:

     1.   I  have  reviewed  this  quarterly  report  on  Form  10-QA  of  ATSI
          Communications,  Inc.,  a  Delaware  Corporation;
     2.   Based  on  my  knowledge,  this  quarterly report does not contain any
          untrue  statement  of a material fact or omit to state a material fact
          necessary  to  make the statements made, in light of the circumstances
          under  which such statements were made, not misleading with respect to
          the  period  covered  by  this  report;
     3.   Based  on  my knowledge, the financial statements, and other financial
          information  included  in  this report, fairly present in all material
          respects the financial condition, results of operations and cash flows
          of  the  registrant  as  of,  and  for,  the periods presented in this
          report;
     4.   The  registrant's  other  certifying officer and I are responsible for
          establishing  and  maintaining  disclosure controls and procedures (as
          defined  in  Exchange  Act  Rules  13a-15(e)  and  15d-15(e))  for the
          registrant  and  have:

          a)   Designed  such disclosure controls and procedures, or caused such
               disclosure  controls  and  procedures  to  be  designed under our
               supervision,  to ensure that material information relating to the
               registrant,  including  its  consolidated  subsidiaries,  is made
               known  to us by others within those entities, particularly during
               the  period  in  which  this  report  is  being  prepared;
          b)   Evaluated  the  effectiveness  of  the  registrant's  disclosure
               controls  and  procedures  and  presented  in  this  report  our
               conclusions  about  the  effectiveness of the disclosure controls
               and  procedures,  as  of  the  end  of the period covered by this
               report  based  on  such  evaluation;  and
          c)   Disclosed  in  this  report  any  change  in  the  registrant's
               disclosure  controls  and  procedures  that  occurred  during the
               registrant's  most recent fiscal quarter (the registrant's fourth
               fiscal  quarter  in  the  case  of  an  annual  report)  that has
               materially  affected,  or  is  reasonably  likely  to  materially
               affect,  the registrant's disclosure controls and procedures; and

     5.   The registrant's certifying officer and I have disclosed, based on our
          most  recent  evaluation of internal control over financial reporting,
          to  the  registrant's auditors and the audit committee of registrant's
          board  of  directors  (or persons performing the equivalent function):

          (a)  all  significant  deficiencies  and  material  weaknesses  in the
               design  or operation of internal control over financial reporting
               which  are reasonably likely to adversely affect the registrant's
               ability  to  record,  process,  summarize  and  report  financial
               information;  and
          (b)  Any  fraud,  whether or not material, that involves management or
               other  employees  who have a significant role in the registrant's
               internal  control  over  financial  reporting.

By  /s/  Antonio Estrada
Antonio Estrada
Corporate Controller
and Chief Financial Officer
March 1, 2004


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