Jump to content

Sign in to follow this  

Operation was unsuccessful

Recommended Posts



I'm trying to set up Lync 2010 in a small lab.

I have a single server handling all the lync stuff, one domain controller, a SIP gateway and one client.


This far, I've been able to connect from the client to the Lync service.

When I setup a test call, through the SIP gateway - the client says

"Operation was unsuccessful".
The calling service did not respond. Waint and then try again. 
If the problem continues, contact your support team with this information. 


I have no idea where to start looking for the error.

Is this a typical Lync config error? Or could the problem be my SIP gateway not accepting the traffic from Lync?


Any pointers would be much appreciated!

Share this post

Link to post
Share on other sites

Figured out that this was due to a misconfiguration in the SIP gateway.


Now I'm dealing with:


The Mediation Server service has received a call that does not support comfort noise from the Gateway peer, (SIP gateway IP)
Cause: The Gateway peer does not support comfort noise.
Please ensure the comfort noise option on the Gateway has been enabled.

And this:

Unexpected exception occurred in the Inbound Routing Application.
Exception: System.DirectoryServices.ActiveDirectory.ActiveDirectoryServerDownException: The RPC server is unavailable.
Name: "domaincontroller.mydomain.local"
  at System.DirectoryServices.ActiveDirectory.Forest.GetTrustsHelper(String targetForestName)
  at Microsoft.Rtc.Internal.ExumDialPlanData.GetTrustedForests()
  at Microsoft.Rtc.Internal.ExumDialPlanData.RefreshDomainDictionary()

  • Like 1

Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Create New...