A system and method are provided for initiating and establishing a local chat session. In general, a first network device determines whether to initiate a local chat session with a second network device based either directly or indirectly on a profile for the second network device. The profile includes...http://www.google.com.hk/patents/US7859560?utm_source=gb-gplus-share專利 US7859560 - System and method for establishing a local chat session
