Abstract: A method for associating a PBX extension (21) with a user account (31), the method comprising: (S1) receiving an association request comprising a PBX extension telephone number from a user account (31), (S2) sending an association code to the user account (31), (S6) sending to the PBX central unit (22), a command to connect the PBX extension (21) to the IVR application (33), (S8) receiving through the IVR application (33), an association code from the PBX extension (21), (S10) if the association code received from the PBX extension (21) is the same as the association code sent to the user account (31) enabling the control of the PBX extension (21) from the user account (31) through the CTI link (51).

Abstract: A method for associating a PBX extension (21) with a user account (31), the method comprising: (S1) receiving an association request comprising a PBX extension telephone number from a user account (31), (S2) sending an association code to the user account (31), (S6) sending to the PBX central unit (22), a command to connect the PBX extension (21) to the IVR application (33), (S8) receiving through the IVR application (33), an association code from the PBX extension (21), (S10) if the association code received from the PBX extension (21) is the same as the association code sent to the user account (31) enabling the control of the PBX extension (21) from the user account (31) through the CTI link (51).

Abstract: The invention namely provides a presence server (103) comprising: a data repository in which is stored a plurality of user (106, 107) identities recorded in association with at least one device address and a status, an input interface for receiving a busy or available status updating request (2) comprising an address of a calling device (201) and a called user (107) identity of a user of a called device (202), a processing unit configured to: when the input interface receives the busy status updating request (2): retrieve from the data repository a calling user (106) identity, change the status associated to the calling user (106) identity into a busy status, when the input interface receives the available status updating request (7), change the status associated to the calling user identity into an available status, an output interface to access the status of user identities.

Abstract: The invention namely provides a presence server (103) comprising: —a data repository in which is stored a plurality of user (106, 107) identities recorded in association with at least one device address and a status, —an input interface for receiving a busy or available status updating request (2) comprising an address of a calling device (201) and a called user (107) identity of a user of a called device (202), —a processing unit configured to: when the input interface receives the busy status updating request (2): —retrieve from the data repository a calling user (106) identity, —change the status associated to the calling user (106) identity into a busy status, when the input interface receives the available status updating request (7), change the status associated to the calling user identity into an available status, —an output interface to access the status of user identities.