Hi,

I'm using Lync 2010 and I'm having trouble to contact Skype users.

I have multiple SIP Domains and with some of them I'm being able to add and interact with Skype users, and with some other of my SIP Domains I'm not able to contact Skype users (actually they are not even able to find my other SIP domains when they do a search to send me a request). I have enable federated access for all my domains and followed the guide to integrate Lync with Skype.

All my SIP domains are using the same AD and Exchange

Not sure what I am doing wrong.

Hello,

You already register in https://pic.lync.com?

do you already able to contact someone domain federated?

Yes, I already registered.

And yes, I'm able to contact someone domain federated with my abcdomain.com but not with my xyzdomain.com

I have found Skype federation to be quite unreliable. Are you able to test to another public IM provider?

Hi,

Please make sure you met the prerequisites and followed the same steps as provided in the http://www.microsoft.com/en-us/download/confirmation.aspx?id=39071

Also if your SIP domains have been successfully registered and followed the above steps, try to find additional details either using the OCS Logger tool from the Edge server or a Snooper trace from A client that added the Skype MSN account to his contact list.