A system, method, and computer program product is provided for establishing real-time communications between computer users connected by a communications network. An invitation is created by a first computer. An invitation is data that proposes a communication session. An invitation can indicate the...http://www.google.com/patents/US7844670?utm_source=gb-gplus-sharePatent US7844670 - Method and computer program product for establishing real-time communications between networked computers
