CHAT SYSTEM
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Oct 8, 2015
app pub date -
Jan 20, 2015
filing date -
Apr 8, 2014
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A chat system includes a key telephone unit and a plurality of user terminals connected to the key telephone unit. When the key telephone unit receives an IP address of the user terminal, it refers to a corresponding list in a list table, includes the received IP address in presence information, and transmits the presence information to an addressee in the list. Thus, the key telephone unit establishes peer-to-peer chat communication between the user terminal that has transmitted the IP address and the addressee.
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