| 摘要 |
The aim of the invention is to make it possible to efficiently select flows of early media user data. Said aim is achieved by a method for selecting user data (early media data 13/B or 14/B') that is transmitted between a calling user (terminal A) and at least one called user (terminal B or B') via at least one telecommunication network (SIP proxy) before call establishing (1 to 12, 15 to 19) is completed (20). According to the inventive method, the calling user (A) uses a called user's reception address data (IP-B, port B of terminal B or IP-B', port B of terminal B') contained in a reply message (9, 10 of B or 11, 12 of B') of a called user (B o B') to select user data (early media-13 of B/14 of B') sent by the called user (B or B') with a transmission address (IP-b, port b for B, IPb', port b' of B') of said called user, a called user's reception address data (IP-B, port B of terminal B) of a call destination (B) also representing transmission address data (IP-b, port b) of said called user (B).
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