Patent ID: 7911987
Filing Date: 2011-03-22
Classification: G06F,H04L,H04M,H04W,Y02D

Abstract:
1. A method of exchanging messages between a first mobile station and a second mobile station in a system including a wireless network and a routing server coupled to said wireless network, said first mobile station having one or more first communications applications and said second mobile station having one or more second communications applications, said first mobile station having a first personal identification number and said second mobile station having a second personal identification number, the method comprising: sending an invitation message from said first mobile station to said second mobile station using one of said one or more first communications applications, said invitation message including said first personal identification number; sending an acceptance message from said second mobile station to said first mobile station using one of said one or more second communications applications, said acceptance message including said second personal identification number; creating one or more first messages, said first messages including said second personal identification number; sending said one or more first messages to said routing server through said wireless network; sending said one or more first messages from said routing server to said second mobile station through said wireless network, said one or more first messages being routed by said routing server based on said second personal identification number; creating one or more second messages, said second messages including said first personal identification number; sending said one or more second messages to said routing server through said wireless network; sending said one or more second messages from said routing server to said first mobile station through said wireless network, said one or more second messages being routed by said routing server based on said first personal identification number; and said first mobile station periodically sending an availability information message to said second mobile station.