What does PTT stand for?

What does PTT mean?

PTT	Push To Talk Computing » Telecom
PTT	Partial Thromboplastin Time Medical » Physiology
PTT	Partial Thromboplastin Time Medical » Laboratory
PTT	Push To Talk Computing » Hardware
PTT	Post, Telephone, and Telegraph Community » Media
PTT	Pacific Telephone & Telegraph Company Business » Firms
PTT	Partial Thromboplastin Time Medical » Hospitals
PTT	Post, Telephone, and Telegraph Governmental » Military
PTT	Personal Training Tactics Governmental » Military
PTT	Productivity Task Tracking Business » General
PTT	Platform Transmitter Terminal Academic & Science » Ocean Science
PTT	Presentations That Talk Business » Firms
PTT	Post, Telephone, and Telegraph Computing » Telecom
PTT	Permission To Talk to.... Academic & Science » Amateur Radio
PTT	Passing The Time Internet » Chat
PTT	Poste, Télécommunications, et Télédiffusion International » French
PTT	Posta ve Telgraf Teskilati Genel MüDüRlüGü International » Turkish
PTT	Pull The Trigger Governmental » Military
PTT	Push-to-Talk Governmental » NASA
PTT	Philippine Telegraph and Telephone Company Business » Firms
PTT	Post, Telephone, and Telegraph Miscellaneous » USPS
PTT	Post, Telephone, and Telegraph Governmental