DONALD R. FELBAUM
Managing Director
OPTEL
L29 Joy Nostalg Centre
17 ADB Avenue, Ortigas Center
Pasig City, 1605
Philippines
TEL. NO. +632 633 9755 – 56
L29 Joy Nostalg Centre
17 ADB Avenue, Ortigas Center
Pasig City, 1605
Philippines
TEL. NO. +632 633 9755 – 56