OMA's Push-to-Talk cell-phone standard

August 2005
Portable Design;Aug2005, Vol. 11 Issue 8, p6
The article discusses the Open Mobile Alliance (OMA) in La Jolla, California's launch of its Push-to-Talk over Cellular (PoC) 1.0 Candidate Enabler. Collaboratively developed by the group's members, the standard addresses two way communications similar to "walkie-talkie" applications, allowing mobile-phone users to engage in immediate talk with one or multiple users. The group says the standard is designed to provide the worldwide mobile industry with increased opportunity to deliver new services across multiple carriers, geographic locations, and devices. PoC 1.0 Enabler defines several modes of two way communications. One-to-One PoC Session mode is the basic capability to initiate voice communications between two users. One-to-Many PoC Session mode enables a single user to set up voice communications with multiple PoC subscribers in an ad hoc or predefined group manner.


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