push-to-talk Last modified: Tuesday, February 14, 2006
Push-to-talk (abbreviated as PTT or P2T) is a two-way communication method that uses half-duplex mode where transmission occurs in both directions, but not at the same time. To use PTT, users must press a button on the PTT device while speaking, then release it when done. The listener must then do the same to respond. Common PTT devices include the walkie-talkie. Newer PTT systems use VoIP to provide digital PTT service over 3G data networks. Synonymous with press-to-talk. See also Push-to-talk Over Cellular.
•E-mail this definition to a colleague• For internet.com pages about push-to-talk . Also check out the following links! Open Mobile Alliance  The mission of the Open Mobile Alliance is to facilitate global user adoption of mobile data services by specifying market driven mobile service enablers that ensure service interoperability across devices, geographies, service providers, operators, and networks, while allowing businesses to compete through innovation and differentiation. Converging Push-to-Talk At The Desktop PTT offers several benefits over traditional voice conferencing methodologies that make it particularly useful for time-sensitive, ad hoc voice calls that don.t require extensive discussions. Core Mobility: Push-to-Talk In the race to increase average revenue per user and reduce churn, carriers everywhere are looking to PTT. MobilePlanet Online shop devoted entirely to portable computing products, Includes laptops, portable accessories, PC cards, global travel aids, and a full line of software titles from the leading manufacturers in portable computing. Push to Talk An overview of PTT and POC, detailing deployment, operations, and the future of the technology. WIRED Article: 'Push-to-Talk' Spreading Fast If you think drivers yammering on their cell phones are annoying, wait until another wireless service already popular among business users becomes even more prevalent in public: instant, two-way walkie-talkie chatter.	Communications Internet Telephony communications full-duplex half-duplex ham radio hardware Push-to-talk Over Cellular SMS telephony VoIP Give Us Your Feedback Shopping push to talk Products Compare Products,Prices and Stores Shop by Category: Cellular Phones 25 Model Matches Security Systems and Surveillance 39 Store Offers Headsets 306 Store Offers Musical Instruments 4 Store Offers Software 0 Store Offers