Is improved offers the call transfer service which in

摘要

This invention regards the network unit and the computer program product in order to execute method and this method of offering the call transfer service which is improved in telecommunications network. Ahead the 1st calling which is started call side (10) by (21) to call starts, continues and is transferred, ahead the 1st calling (21) from 1 or more furthermore ahead the calling which is connected (22 and 23) to with the call transfer chain (401 and 402) forms with that. Set of the data is added by call, as for the data the call transfer chain (401 and 402) ahead each calling which participates (21, 22 and 23) the identifier and the call transfer chain (401 and 402) ahead each calling which participates (21, 22 and 23) the respective message memory which is allotted (210, 220 and 230) relation has the address which is attached. Call the call transfer chain (401 and 402) ahead the last calling (23) when the message memory which is allotted (230) being transferred, ahead calling (10) that message memory (210, 220 and 230) the message which it should house 1 or more is offered, it is urged. Message memory (210, 220 and 230) relation as for 1 or more of the address which is attached is removed from the set of the data. Call side (10) from the message which is received message memory (210, 220 and 230) is transmitted 1 or more by the routing doing in address of 1 or more where message the description above it is removed.