An encoder for coding audio content using at least a TCX-coding scheme, wherein the encoder is configured to provide a primary encoded representation of a current frame and an encoded representation of at least one error concealment parameter for providing a decoder-sided guided error concealment of the current frame, wherein the encoded representation of the at least one error concealment parameter is transmitted in-band as part of the codec payload, wherein the encoder is configured to combine the encoded representation of the at least one error concealment parameter of the current frame with a primary encoded representation of a future frame into a transport packet such that the encoded representation of the at least one error concealment parameter of the current frame is sent with a time delay relative to the primary encoded representation of the current frame, wherein the encoder is configured to select the at least one error concealment parameter based on one or more parameters representing a signal characteristic of the audio content contained in the current frame, wherein the encoder is configured to selectively choose between at least two modes for providing an encoded representation of the at least one error concealment parameter, wherein at least one of the modes for providing an encoded representation of the at least one error concealment parameter is a time domain concealment mode that is selected if the audio content contained in the current frame contains a transient or if the global gain of the audio content contained in the current frame is lower than the global gain of the preceding frame, and wherein at least one of the modes for providing an encoded representation of the at least one error concealment parameter is a frequency domain concealment mode such that the encoded representation of the at least one error concealment parameter comprises one or more of an LSF parameter, a TCX global gain and a classifier information. provide a primary encoded representation of a current frame and an encoded representation of at least one error concealment parameter for providing a decoder-sided guided error concealment of the current frame, wherein the encoded representation of the at least one error concealment parameter is transmitted in-band as part of the codec payload, wherein the encoder is configured to combine the encoded representation of the at least one error concealment parameter of the current frame with a primary encoded representation of a future frame into a transport packet such that the encoded representation of the at least one error concealment parameter of the current frame is sent with a time delay relative to the primary encoded representation of the current frame, wherein the encoder is configured to select the at least one error concealment parameter based on one or more parameters representing a signal characteristic of the audio content contained in the current frame, wherein the encoder is configured to selectively choose between at least two modes for providing an encoded representation of the at least one error concealment parameter, wherein at least one of the modes for providing an encoded representation of the at least one error concealment parameter is a time domain concealment mode that is selected if the audio content contained in the current frame contains a transient or if the global gain of the audio content contained in the current frame is lower than the global gain of the preceding frame, and wherein at least one of the modes for providing an encoded representation of the at least one error concealment parameter is a frequency domain concealment mode such that the encoded representation of the at least one error concealment parameter comprises one or more of an LSF parameter, a TCX global gain and a classifier information.