Replay agent for delivering charging event messages from a message broker in a mobile telecommunications network

A system for preserving charging event messages in a mobile telecommunications network when a charging server is unavailable, comprising:

• one or more processors;
• a message broker comprising persistent storage;
• a network element that is executable by the one or more processors to generate a charging event message, attempt to send the charging event message to the charging server, and write the charging event message to the message broker in response to determining that the attempt to send the charging event message to the charging server has failed;
• and
• a replay agent that is executable by the one or more processors to:
• subscribe to the message broker for notifications associated with the charging server;
• receive a notification from the message broker about the charging event message;
• read the charging event message from the message broker;
• and
• cause the charging event message to be sent to the charging server when the charging server is available.

A method for preserving charging event messages in a mobile telecommunications network when a charging server is unavailable, the method being implemented by a replay agent that is in electronic communication with a message broker that comprises a plurality of charging event messages, the method comprising:

• subscribing to the message broker for notifications associated with a plurality of charging servers;
• receiving a first notification from the message broker about a first charging event message that has been written to the message broker;
• reading the first charging event message from the message broker;
• causing the first charging event message to be sent to a first charging server using a first protocol;
• receiving a second notification from the message broker about a second charging event message that has been written to the message broker;
• reading the second charging event message from the message broker;
• and
• causing the second charging event message to be sent to a second charging server using a second protocol.