Push-To-Talk Over Cellular

Push-to-talk Over Cellular (POC) is the push to talk (PTT) voice service for mobile communications. It provides direct one-to-one and one-to-many voice communication service in the cellular network. It is based on half-duplex VoIP technology over mobile networks which allows PTT service to use cellular access resources.

See also PTT.

Vangie Beal
Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

Top Articles

The Complete List of 1500+ Common Text Abbreviations & Acronyms

Text Abbreviations reviewed by Web Webster   From A3 to ZZZ we list 1,559 SMS, online chat, and text abbreviations to help you translate and understand...

How to Create a Website Shortcut on Your Desktop

Website Shortcut on Your Desktop reviewed by Web Webster   This Webopedia guide will show you how to create a website shortcut on your desktop using...

Windows Operating System History & Versions

The Windows operating system (Windows OS) refers to a family of operating systems developed by Microsoft Corporation. We look at the history of Windows...

First to Fifth Generations of Computers

Reviewed by Web Webster   Learn about each of the 5 generations of computers and major technology developments that have led to the computing devices that...

What is a Passphrase?

What is a passphrase? A passphrase is a string of words used to help...

What is UID?

A unique identifier (UID) is a character string, either numeric or alphanumeric, that...

How to Use Google...

Updated by Jenna Phipps   Google Hangouts is a cloud-based messaging and video chat application...