Patent ID: 7620052

Claim:
A method for transferring media data subject to coding or decoding performed by a codec, the data including audio data, video data or a combination, between at least two terminating devices in a telecommunications network utilizing a network node, the method comprising the steps of: receiving information about codecs supported on a communication path between the network node and one of the at least two terminating devices; providing a list of codec types or configurations or both that are supported by: the network node; the one of the at least two terminating devices; and all the network nodes in the communication path between the network node and one of the at least two terminating devices; comparing the received information about codecs with the list of codec types or configuration or both; and utilizing the list of codec types or configurations or both for coding or decoding or both if at least one transcoding is implemented in the communication path, wherein the codec types or configurations or both that are supported directly form a first part of the list and codec types or configurations or both that is used only if the at least one transcoding is implemented form a second part of the list, wherein the first part of the list and the second part of the list are separated by a separator, the separator being a codec type.