A method for operating a hearing system for conducting telephone calls providing improved feedback of own voice to a user of the hearing system, comprising a hearing device worn by the user with a hearing device microphone and a hearing device loudspeaker and a telephone with a telephone microphone, the method comprising the steps of: a) picking up a first sound signal with the telephone microphone to provide a primary sidetone signal; b) picking up a second sound signal with the hearing device microphone to provide a secondary sidetone signal; c) receiving an incoming telephone call with a voice signal of a caller from a remote location; d) sending the primary sidetone signal to the remote location via a long range wireless communication link; e) sending the voice signal of the caller to the hearing device via a short range wireless communication link; f) sending the primary sidetone signal to the hearing device via the short range wireless communication link; g) applying a first amplification to the primary sidetone signal to provide an amplified primary sidetone signal; h) applying a second amplification to the secondary sidetone signal to provide an amplified secondary sidetone signal; i) combining the amplified primary sidetone signal with the amplified secondary sidetone signal to provide a combined sidetone signal; and j) outputting the combined sidetone signal via the hearing device loudspeaker, wherein an adjusting of the first amplification is dependent on an adjusting of the second amplification, or alternatively, wherein an adjusting of the second amplification is dependent on an adjusting of the first amplification, wherein the adjusting of the second amplification comprises increasing or decreasing the second amplification of the secondary sidetone signal and the adjusting of the first amplification comprises automatically decreasing the first amplification of the primary sidetone signal if the second amplification is increased, and automatically increasing the first amplification if the second amplification is decreased, or alternatively, wherein the adjusting of the first amplification comprises increasing or decreasing the first amplification of the primary sidetone signal and the adjusting of the second amplification comprises automatically decreasing the second amplification of the secondary sidetone signal if the first amplification is increased, and automatically increasing the second amplification if the first amplification is decreased, and wherein the user of the hearing system performs the adjusting of either the first or the second amplification. a) picking up a first sound signal with the telephone microphone to provide a primary sidetone signal; b) picking up a second sound signal with the hearing device microphone to provide a secondary sidetone signal; c) receiving an incoming telephone call with a voice signal of a caller from a remote location; d) sending the primary sidetone signal to the remote location via a long range wireless communication link; e) sending the voice signal of the caller to the hearing device via a short range wireless communication link; f) sending the primary sidetone signal to the hearing device via the short range wireless communication link; g) applying a first amplification to the primary sidetone signal to provide an amplified primary sidetone signal; h) applying a second amplification to the secondary sidetone signal to provide an amplified secondary sidetone signal; i) combining the amplified primary sidetone signal with the amplified secondary sidetone signal to provide a combined sidetone signal; and j) outputting the combined sidetone signal via the hearing device loudspeaker,