Fourth Coffee has deployed a Lync 2013 infrastructure. Company employees and guests joining from outside of the company do not report any issues with shared media. The company reports, however, that…

Fourth Coffee has deployed a Lync 2013 infrastructure. Company employees and guests joining from outside of the company do not report any issues with shared media. The company reports, however, that visiting consultants experience poor audio quality when they conduct peer-to-peer (P2P) audio sessions with Fourth Coffee employees who are located in the same office. A section of the call data report (CDR) in represented in the following table:

You need to identify the root cause of poor audio quality. Which value should you choose?