The meaning of the Acronym PTT is...

PTT is

• Push-to-Talk

More Meanings For PTT:

• Postal, Telephone and Telegraph Authority
• Push To Talk
• Press To Talk
• Postal Telegraph Telephone
• Permission To Talk to....
• Platform Transmitter Terminal
• Posts Telegraph And Telephone
• Postal Telegraph And Telephone
• Post Telegraph And Tele
• Passing The Time
• Partial Thromboplastin Time
• Partial Thromboplastin Time
• Presentations That Talk
• Postal, Telephone, and Telegraph
• Public Telephone and Telegraph

PTT is also in:

• Amateur Radio
• Firms
• Laboratory
• Military
• Ocean Science
• Physiology
• Telecom
• Unfiled