I am unable to use my Skype for business account

james lewis 1 Reputation point
2021-04-20T06:11:48.36+00:00

I setup Office 365, added telephone system, calling card and domestic/international calling credits. But I am unable to use Skype.

I have the telephone dial button console in my skype for business App, which shows that the calling card has been setup successfully.

But I can not make any calls, my mic also does not show as being connected. (all other apps - no problem) Also I am unable to make a call quality testing call. Which shows there is a block somewhere on the software.

Love some help

Microsoft 365 and Office | Skype for Business | Windows
0 comments No comments
{count} votes

1 answer

Sort by: Most helpful
  1. JimmyYang-MSFT 58,651 Reputation points Moderator
    2021-04-20T09:34:41.613+00:00

    Hi @james lewis

    To exclude the client issue, we firstly recommend you try to clear Skype for Business client cache file by following these tips:

    1)Log out Skype for Business;

    2)Delete any sign-in information;

    3)Navigate to Users > [Your Username] > AppData > Local > Microsoft > Office > 15.0 > Lync

    4)Delete the sip_profileName folder

    5)Delete all files in Tracing folder. Do not delete the folder itself

    If the above suggestion is not work for you. I have some questions to confirm with you:

    1)Are there any error messages when you make phone call in Skype for Business?

    2)Does anyone have the same issue in your organization?

    3)What is your environment? On-premise or online?


    If the response is helpful, please click "Accept Answer" and upvote it.

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.


Your answer

Answers can be marked as Accepted Answers by the question author, which helps users to know the answer solved the author's problem.