A network node and a method therein for transferring a media stream are disclosed. The network node (110) transfers (A010) a media stream from a first device (111) to at least a second device (112), wherein the first device (111) supports bit rate adaptation based on Temporary Maximum Media Stream Bitrate Request, “TMMBR”, feedback and the second device (112) supports bit rate adaptation based on Self-Clocked Rate Adaptation for Multimedia, “SCReAM”, feedback. The network node (110) receives (A020) SCReAM feedback from the second device (112). Furthermore, the network node (110) derives (A030) at least one rate control message from the SCReAM feedback. Moreover, the network node (110) determines (A040), based on said at least one rate control message, a recommended bit rate to be recommended for use by the first device (111) when encoding the media stream. Then, the network node (110) sends (A050) a TMMBR message to the first device (111), wherein the TMMBR message indicates the recommended bit rate. A corresponding computer program and a carrier therefor are also disclosed.