Abstract: A method of providing a content delivery service to an actual user of a communication system supporting push-to-talk. The content delivery service includes delivering a content to the actual user, wherein the method includes associating a virtual user to said content; establishing a push-to-talk session involving the actual user and the virtual user; and delivering the content from the virtual user to the actual user through the established push-to-talk session.

Abstract: A method of providing a push-to-x service to a user of a data terminal which is connected to a packet-switched network includes, at a gateway interfacing the packet-switched network and the framework supporting the push-to-x service: receiving from the data terminal a request for accessing the push-to-x service; checking a user class to which the user belongs; and, according to the user class, assigning a push-to-x identity to the user either by selecting the push-to-x identity from a set of predefined push-to-x identities, or by retrieving the push-to-x identity from a user profile table; and accessing the framework and the push-to-x service by using the push-to-x identity.

Abstract: A communication system suitable for supporting services based on PoC, includes a PoC server, a first terminal provided with a first PoC client module and a second terminal provided with a second PoC client module. The first PoC client module includes a generic user interface application suitable for generating a generic user interface configured to provide a user of the first terminal with a call service based on PoC and a specialized user interface application suitable for generating a specialized user interface configured to provide the user with a content exchange service based on PoC.

Abstract: A method of providing a push-to-x service to a user of a data terminal which is connected to a packet-switched network includes, at a gateway interfacing the packet-switched network and the framework supporting the push-to-x service: receiving from the data terminal a request for accessing the push-to-x service; checking a user class to which the user belongs; and, according to the user class, assigning a push-to-x identity to the user either by selecting the push-to-x identity from a set of predefined push-to-x identities, or by retrieving the push-to-x identity from a user profile table; and accessing the framework and the push-to-x service by using the push-to-x identity.

Abstract: A method of providing a content delivery service to an actual user of a communication system supporting push-to-talk. The content delivery service includes delivering a content to the actual user, wherein the method includes associating a virtual user to said content; establishing a push-to-talk session involving the actual user and the virtual user; and delivering the content from the virtual user to the actual user through the established push-to-talk session.

Abstract: An intermediate component is intermediate between mobile terminals requesting a service, such as a push service, and a service-providing server, such as an HTTP server. The intermediate component is a connection machine or hub that is able to open a session the first time it receives a request from a mobile terminal, by instantiating a communication channel for performing the communications with the mobile terminal and storing the data regarding the open session in a connection table. Then, the connection hub generates a request to a service-providing server, including connection data, and manages the communication with the service-providing server. The connection data are inserted in every communication between the connection hub and the mobile terminal and between the connection hub and the service-providing server. From that moment on, all the data (messages, requests) exchanged between the terminal and the service-providing server are routed on the instantiated channel, thus in a fast and efficient way.

Abstract: Multimedia service contents are provided to user terminals in a wireless communication network, such as, a GPRS or UMTS network, by generating delivery packets that convey both the multimedia service contents and a corresponding service logic. These delivery packets are received and interpreted by means of an interpreter at the user terminals (client) to obtain presentation of the multimedia service contents and the interaction level between client and server according to the corresponding service logic. The multimedia contents can thus be presented interactively at the terminal while new services can be designed on the server side and made available to the user terminals without modifications being required on the terminal side.