Routing a telephone call to an alias voicemail system

A communication management platform for establishing a communication from a first communication terminal to a second communication terminal, the first and second communication terminals having each a main caller identifier, the second communication terminal further being associated with a secondary caller identifier, the communication management platform comprising:

• a communication module arranged to receive, from the first terminal, a first request for telephone communication comprising the secondary caller identifier of the second terminal;
• the communication module further being arranged to send a second request for telephone communication to the second terminal, the second request comprising the main caller identifier of the second terminal;
• the communication management platform further comprising a processor arranged for:
• in the event of a favorable response to the second request not being received from the second terminal:
• sending to a voicemail system platform, via a data channel, a voicemail system caller identifier associated with the secondary caller identifier;
• and
• sending to the voicemail system platform a request for telephone communication aiming to establish a communication between the first terminal and a voicemail system with which the voicemail system caller identifier is associated,
• the request for telephone communication comprising a first sub-request corresponding to a voice call and a second sub-request corresponding to an application programming interface call, the first and second sub-requests being correlated at the voicemail system platform or at the voicemail system.