| 摘要 |
The invention relates to a method and a device for signalling a codec negotiation over heterogeneous signalling networks. In a heterogeneous network environment, interfaces can be present, for a transmission, which are governed by limitations in terms of a codec negotiation. Especially cases in which only a limited set of codecs is supported and/or signalled in the target network, or in which the target network only has a limited number of elements, for example one element, from which proposed codec lists can be extracted or evaluated, present problems. If this is the case, as a result, connections are rejected if non-supported codecs are signalled. The aim of the invention is to provide an improved method for signalling codec negotiations, whereby as few as possible signalling calls are rejected. To this end, a significant idea of the invention is that the list of supported codecs is resorted before the signalling call in the emission network. The codec list is resorted in such a way that a codec which is (highly likely to be) supported by a terminal in the reception network is placed in first position in the list.
|
