Method and system for notifying absence in PTT service, and portable terminal adapted thereto

作者: Sun Mi Hong , Woo Chan Park

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摘要: A method and system for notifying a first portable terminal regarding the absence of second in Push-To-Talk (PTT) service. The allows user to transmit an message user, displays absent state when requests PTT connection with user. Therefore, enables recognize

参考文章(11)
Michael Sajor, Swavek Skret, Charles Corfield, Brian Marquette, Dale Hartzell, Apparatus an method to store and forward voicemail and messages in a two way radio ,(2005)
Kevin Allen Sapp, Pre-programmed subscriber response ,(2007)
John E. Emrich, Balakumar Jagadesan, Method for PoC server to handle PoC caller preferences ,(2006)
Thomas B. Hart, Ronald T. Crocker, Method and apparatus reducing ptt call setup delays ,(2004)
Matthew D. Fitzpatrick, William R. Worger, Method for dispatch voice messaging ,(2005)
Sriram Parameswar, Barbara Derryberry, Robert E. Denman, Push-to-talk wireless telecommunications system utilizing a voice-over-IP network ,(2001)
Laurel Salvador, Jeffrey Fischman, William Jenkins, Robin Kim, Voice message storage in a push-to-talk communication system ,(2004)
George R. Economy, Robert J. Armstrong, Paul G. Bell, Adaptive buffering to reduce audio truncation ,(2007)