Apparatus, system, and method for rejecting a session establishment request

摘要

A system, apparatus and method for rejecting a session request is disclosed. The session establishment request is initiated via a session establishment protocol operable via a network. In one configuration, a first network terminal receives a session establishment request sent from a second network terminal via the session establishment protocol. A message template is selected from one or more message templates of the first network terminal. Each message template includes a reason descriptor describing reasons the session cannot be established. A rejection message of the session establishment protocol is formed based on the selected message template. The rejection message is sent via the session establishment protocol targeted for the second network terminal. The reason descriptor is communicated to a user of the second network terminal.