Service of a telecommunication system and service device realizing such a service

A service of a telecommunication system which is delivered upon receiving of a communication request (REQ) of an originating user (A). The communication request (REQ) is generated at a first terminal (T1-A1) of the originating user (A) and includes an identification of a terminating user (B). The service includes the steps of retrieving and comparing a request profile of the originating user and a reachability profile of the terminating user. Following the results of the comparing the service can further include any or both of the steps of: a) according to a result of the comparing, establishing a communication between a second terminal (T2-A) of the originating user and first terminal (T2-B) of the terminating user; andb) generating and providing information of the result to a third terminal (T1-A) of the originating user.