Common charging identifier for communication networks

The first embodiment of this invention, the activation PDP context to request when the information is a given serving GPRS support node (SGSN), wherein SGSN of to create a PDP context request message, and transmitted to a gateway GPRS support node (GGSN). In turn to respond request is composed of a base PDP context of SGSN transmission according to GGSN of to create a PDP context response message. Which is founded the PDP context of GGSN, GGSN a symbol the global without charging (GCI) and PDP context associated. A responded, comprising a base GCI PDP context is transmitted to SGSN. GCI is transmitted from SGSN UE, and transmitting CSCF from UE. A second embodiment of this invention, GCI by from SGSN or GGSN to call control state (CSCF) function. The automatic or a coming from CSCF the base of request, executing to transmit the operation of GCI. The embodiment, CSCF and for collecting data of deals connected with the GCI and call detail record to the base (e.g.) and second network substrate-processing GCI.