Push to Talk Over Cellular

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What Does Push to Talk Over Cellular Mean?

Push to talk over cellular (PoC) is a wireless two-way cellular communication allowing instant and global mobile connectivity with the ability to communicate on a push of a key.

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Push to talk over cellular uses the push to talk communication (PTT) principle, where reciever does not need to answer the call as there is always active connection between two individuals or group. The communication can be started on a push of a key one user at a time.

Techopedia Explains Push to Talk Over Cellular

PoC combines push-to-talk (PTT) operational advantages with interference immunity and other mobile phone advantages. For example, PoC uses half-duplex communication (only one call may be transmitted by a user) and one call may be received by one or more users. This feature is more useful when single user wants to talk to a group without making multiple calls.

Full-duplex communication was traditionally applied to mobile networks and devices, which required connection using a dialed phone number or an answered call. This connection was active until the call ended or the connection failed from a signal loss.

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Margaret Rouse
Technology Expert
Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.