Skip to main content

Use Pre-Call Diagnostic tool before audio call / conference.

Use Pre-Call Diagnostic tool before audio call / conference.  

Most of time audio quality issues are related to network condition, poor network connectivity, low-bandwidth network connections, high packet loss, and low Mean opinion score (MOS) etc.

End user can check his own network condition before join call or meeting using Pre-Call Diagnostic Tool (PCD), which is a client-based application that allows a user to see how the current state of the network might impact the media quality in an upcoming call / conference. PCD shows a graphical view of your network metrics – Network MOS, Packet Loss and Interarrival Jitter.
When Pre-Call Diagnostic Tool can be used?
1.     About to get on an important call? Run a quick test in On Demand mode to make sure it will go smoothly.
2.     Run a test in on demand mode to look at your network’s performance over extended periods of time.
3.     Diagnose trends with a view of historical test runs.
4.     Having trouble signing in to Lync? PCD’s Sign-in flyout can help you figure out where the issue is.
Supported Operating System:
·        Windows 7 Service Pack 1, Windows 8, Windows 8.1
·        PCD requires that Unified Communications Web API (UCWA) be installed and configured to support mobile clients in the Lync Server deployment. UCWA is installed with Skype for Business /Lync Server.
·        Any edition of the Windows 7 or Windows 8 operating system
·        Microsoft .NET Framework 4.5 available at
How to install PCD? click download:
a.     Click the download button and save the PreCallDiagTool.msi program file to your hard disk.
b.     Double-click the PreCallDiagTool.msi program file on your hard disk to begin installation.
1.     Welcome screen, click Next
2.     Accept the License agreement.
3.     Select the location where you install. Click on browse if you want to change default install location and click next.
4.     Ready to install screen say "Install".
5.     Finish.
How to use pre-diagnostic tool?
1.     Open Pre-Diagnostic Tool (Start > All Programs > Lync 2013 Pre-Diagnostics 1.1 Desktop)
2.     Click on Menu > Option
3.     On options windows type your email/Sign-in address and select 'On Demand' > OK.
4.     Click on "Start Test" to capture your network condition.
5.     If windows firewall pop-up come then click on "Allow access".
6.     Then click on "Stop Test" and see the Network MOS, Packet Loss, Interarrival Jitter (ms) which are causing issue on audio quality.
7.     Look at below report test request which shows network condition is good.
Thank you.


Popular posts from this blog

Outlook Add-in for Skype meeting getting disable after restarting Outlook.

Issue: Outlook Add-in for Lync meeting getting disable after restarting Outlook.
Problem Statement: Outlook Add-ins gets install automatically when Office 2013 installs (Lync and Skype for Business clients are part of Office package). Add-ins name is Lync Meeting Scheduling Outlook Addin or Skype meeting Add-in for Microsoft Office 2013. Sometime if other add-ins conflict with Outlook add-ins then outlook add-in keep getting disabled. And user has to enable it manually after Outlook restarts. 
Resolution: By default Lync Meeting Scheduling Outlook Addin or Skype Meeting Add-in for Microsoft Office 2013 installs wit load behavior "Load at Startup". However due to some conflict users Lync or Skype add-ins load behavior get changed to loaded instead of "Load at Startup" had to re-enable Lync Meeting Add-In in each time Outlook 2013 was started as it was not set to "Load at Startup". Look at the below screenshot. Now question is how we can change load behavior …

Unable to share desktop in Skype for Business?

Unable to share desktop in Skype for Business?
You can show your entire desktop or just a program to everyone in a Skype for Business Meeting, call, or instant messaging (IM) conversation. However sometime this feature does not work and give different errors.  Error message: ·Cannot start Desktop/Application Sharing due to network issues. ·An error occurred during the screen presentation. Resolution: There are multiple thing which may affect application/desktop sharing. 1.Make sure application / desktop sharing enabled on Skype for Business / Lync Server. SfB /Lync Control Panel > Conferencing > Conferencing policy > select Global or create new policy and set enable ‘Enable application and desktop sharing’. Refer below image. 2.Make sure your Skype for Business (Lync) client is updated with latest cumulative updates. Download latest update Skype (Lync) client. 3.Update your Video and Display drivers. a.Go to Start > Control panel. b.Search for Device Manager, and then open it. c.Find V…

Unable to login to Skype for Business client?

Unable to login to Skype for Business client? In order to sign-in on Skype (Lync) you must have login credential provided to you from your organization. ·Sign-in address: ·User name: orgname\bilag ·Password: ************
Note: is my SIP domain name. Here are the most common mistake people make while sign-in on Skype for Business (Lync).
1.If you have login credential however still unable to sign-in then make sure you are putting proper login credential. Below error shows when you are wrong entering your sign-in address:
2.If you are writing correct Sign-in address however getting DNS error then contact administrator/ Support team there may be a DNS resolution or configuration issue. Administrator need to verify the SfB (Lync) AutoDiscover DNS records. 3.Sometime users password may expired/ lockout: Make sure that you password is not expire and lockout. If yes then call to helpdesk and reset your password / unlock. 4.Make user to have updated Skype for Business cli…