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

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