Abstract: A call processing apparatus (SW) comprises a first queue (Q1) for temporary storage of an incoming call and several parallel second queue systems (Q21–Q23), each corresponding to a different recipient (R1–R3). A recipient selection logic (RS) selects an optimal recipient for the call and terminates it after it has propagated through the first queue. The recipient selection logic then selects a second queue system (Q21–Q23) that corresponds to the selected recipient (R3). Instead of a real call, a virtual call corresponding to the incoming call is placed in the selected second queue system. A callback function (CF) and a call connection (CC) function detect the virtual call's propagation through the second queue system, and establish a callback call to the client (C1), whereby an optimal recipient can be selected for the call and telecommunication resources are not consumed during waiting.

Abstract: A technique for leaving automatic call requests. A switch (SW) receives (2-2) a call setup request from an A terminal to a B terminal and detects (2-4) that the B terminal cannot take the call. The switch (SW) informs (2-6) the A terminal that the call setup request can be interpreted as an automatic call request to the B terminal. Upon receiving (2-8) an acknowledgment from the A terminal, the switch determines and temporarily stores (2-14) an identity of the A terminal. It then sends (2-18) the B terminal a data message that comprises an automatic call request that indicates the identity of the A terminal.