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 disclosure controls and procedures, 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 in the design or operation of
                    disclosure  controls  and  procedures  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  disclosure  controls  and  procedures.

By /s/ Antonio Estrada
Antonio Estrada
Corporate Controller
December 31, 2003


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