IMS emergency services: A preliminary study

Yi-Bing Lin*, Meng Hsun Tsai, Yuan Kuang Tu

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Scopus citations


Emergency call and walkie-talkie are two services utilized in emergency situations. During Typhoon Morakot in 2009, we experienced the deficiency of emergency call service that cannot continuously track callers in real time and walkie-talkie communications where a speaker may not be granted the permission to talk. These issues can be resolved by the emergency call and push-to-talk over cellular services in IP Multimedia Subsystem. This article conducts a preliminary study on how these two services can be effectively exercised in IMS.

Original languageEnglish
Article number5714020
Pages (from-to)6-14
Number of pages9
JournalIEEE Wireless Communications
Issue number1
StatePublished - 1 Feb 2011


  • Emergency services
  • IP networks
  • Mobile computing
  • Multimedia communication
  • Servers
  • Typhoons

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