A client-side design and implementation for push to talk over cellular service

Lin Yi Wu, Meng Hsun Tsai, Yi Bing Lin, Jen Shun Yang

Research output: Contribution to journalArticle

6 Citations (Scopus)


This paper proposes a client architecture for the push to talk over cellular (PoC) service based on the open mobile alliance (OMA) PoC specifications v1.0 release. We show that most standard VoIP modules can be reused for the PoC client, and the VoIP software can be easily extended to support PoC service. Then we present the detailed message flows between the PoC client and other network entities in the PoC system. A PoC client prototype has been implemented in the Industrial Technology Research Institute (ITRI) and National Chiao-Tung University (NCTU) Joint Research Center.

Original languageEnglish
Pages (from-to)539-552
Number of pages14
JournalWireless Communications and Mobile Computing
Issue number5
Publication statusPublished - 2007 Jun 1


All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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