Online charging of ro fail-open sessions

摘要

Techniques for allowing online charging in cases where the online charging system (OCS) is unreachable or partially unreachable are discussed herein. For example, when the OCS cannot be reached and is unable to authorize the requested services, the services can be provided (e.g., a voice communication session established between two devices) without having to wait for authorization from the OCS. Upon completion of the communication session, the OCS is contacted to report the actual number of units used during the session so that the account of the subscriber can be adjusted. In some examples, the IMS tags the CDR provided to the billing system to indicate that the OCS was not able to authorize the communication session. In this way, the billing system is notified that the OCS is to be contacted so that the subscriber's balance can be adjusted.