Access Network - Access Process

Access Process

The process of communicating with a network begins with an access attempt, in which one or more users interact with a communications system to enable initiation of user information transfer. An access attempt itself begins with an issuance of an access request by an access originator.

An access attempt ends either in successful access or in access failure - an unsuccessful access that results in termination of the attempt in any manner other than initiation of user information transfer between the intended source and destination (sink) within the specified maximum access time.

Access failure can be the result of access outage, user blocking, incorrect access, or access denial. Access denial (system blocking) can include:

  • Access failure caused by the issuing of a system blocking signal by a communications system that does not have a call-originator camp-on feature.
  • Access failure caused by exceeding the maximum access time and nominal system access time fraction during an access attempt.

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