Importance

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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. The first PoC client module is further configured to, when the user wishes to activate a first PoC session relative to the content exchange service: activate the specialized user interface application; generate a first invitation message including first information indicative of availability of the specialized user interface at the first terminal; transmit the first invitation message to the second PoC client module through the PoC server; receive a first response message from the second PoC client module through the PoC server; and determine whether the second PoC client module has a further specialized user interface application corresponding to the specialized user interface application by determining whether the first response message includes second information indicative of availability at the second terminal of a further specialized user interface corresponding to the specialized user interface.

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First Claim