"The present document gives a list of information that can be provided with PSTN Advice of Charge services. These services can be provided using the data modem V23 transmission. This protocol is described in documents [1] and [2]. This protocol has been specified to support PSTN display services and it is now completed. This protocol is generic and can used by others services. It is appropriated to study AOC services applications of this protocol. The result of this study would allow to design terminals able to display AOC information on a screen. It will be up to the operator to use or not these information in their PSTN services. For each services@ using data modem V23 transmission@ the present document proposes a simple service description associated with a list of information. For each information@ the type ""mandatory"" or ""optional"" has been mentioned. These types precise witch information is/are primordial for the service in consideration."