You need to troubleshoot and resolve the issue User1 is reporting.
Which action should you perform to resolve the issue?
A. Troubleshoot the Quality of Service (QoS) configuration.
B. Verify that User1 has selected the new headset.
C. Modify the client configuration to not use G.722 codec.
D. On the public switched telephone network (PSTN) trunk, verify the aLaw/µLaw configuration.
