EXHIBIT 10.27 TELECOMMUNICATION SERVICE CONTRACT, ENTERED INTO, ON THE ONE HAND, BY AMERICAN TELESOURCE INTERNATIONAL DE MEXICO, S.A. DE C.V., HEREINAFTER CALLED THE "CLIENT", REPRESENTED BY MR. JESUS ENRIQUEZ PEREZ, AND ON THE OTHER PART, BY AVANTEL,...Telecommunications Service Contract • August 21st, 1997 • American Telesource International Inc • Telephone communications (no radiotelephone)
