Embodiments of this application provide a charging method. The method includes that a session management function determines, a data flow within a protocol data unit, PDU, session and a charging key corresponding to the data flow within the PDU session, wherein a plurality of user plane functions are involved in the PDU session. For each of the plurality of user plane functions, the session management function sends to an online charging system, a quota request for a charging key without available quota for the UPF.

Embodiments of this application provide a charging method. The method includes that a session management function determines, a data flow within a protocol data unit, PDU, session and a charging key corresponding to the data flow within the PDU session, wherein a plurality of user plane functions are involved in the PDU session. For each of the plurality of user plane functions, the session management function sends to an online charging system, a quota request for a charging key without available quota for the UPF.

Systems and Methods for telecommunication expense management are provided. A distributed platform including a user support site, multiple user databases and customized user applications is provided to enable organizations to better manage their telecommunication services and expenses. In an embodiment, a method for electronically processing telecommunication invoices includes importing the telecommunication invoices, extracting elements from the imported invoices and performing reasonability tests on the imported invoices. The reasonability test includes conducting an automated comparison against established criteria that may be customized by users. The method includes generating one or more interactive reports that enable an organization to effectively manage its telecommunication services.

Systems and Methods for telecommunication expense management are provided. A distributed platform including a user support site, multiple user databases and customized user applications is provided to enable organizations to better manage their telecommunication services and expenses. In an embodiment, a method for electronically processing telecommunication invoices includes importing the telecommunication invoices, extracting elements from the imported invoices and performing reasonability tests on the imported invoices. The reasonability test includes conducting an automated comparison against established criteria that may be customized by users. The method includes generating one or more interactive reports that enable an organization to effectively manage its telecommunication services.

Usage information is determined that describes usage of different services by a user device. A combined usage of the different services utilized by the user device is determined and compared to monitoring criteria. When the monitoring criteria are satisfied, an electronic message is sent to an address associated with the user device.