Hi all,

I am trying to develop an audio recording system for lync conferences using UCMA 4.0. I have managed to connect to the conference using an application endpoint and i have attached a recorder to the conversations audio video flow. Although a file get written it does not contain any voice.

I referred this question.

UCMA 3: AudioVideoCall starting, endparty cannot hear me

As mentioned there I tried again after installing Lync Client in the application endpoint but there also it does not contain any voice. 

In the voice activity changed event of the recorder, it indicates that it detected silence... but not voice..

Can you explain me what i am doing wrong..

Thanks in advance for any help..