Push To Talk

What is Push to talk?
Push to talk is a software technology for mobile phones that is designed to let you use your phone in real-time direct one-to-one and one-to-many voice communication. The primary technologies behind Push to talk are SIP (Session Initiation Protocol) and IP networks, such as GPRS, or WCDMA.
How does it work?
Push to talk technology channels voice communication through a data network for always-on* functionality. Mobile phones that are equipped with Push to talk software and that have been subscribed to a mobile network's Push to talk communication service can establish a telephone conference with one person or a group of people. Pushing a specific or dedicated button on the mobile phone opens a voice channel to all selected participants, whose phones will automatically play the caller's voice through the phone loudspeaker. Because it is similar to walkie-talkie, Push to talk allows only one participant to talk at a time.
What are the benefits of Push to talk?
A quick telephone conference with a group of people
Participants don't have to answer the phone, as the speaker's