Hello,

Whenever I try to add another caller to a conversation using the Lync client, I get the following error message:

ID 130 (source ID 238)

Doesn't matter if the call is external or Internal Lync Call.

I would appreciate any ideas.

Thanks,

Pete

Hi,

Please check the event log on front end server.

Please also enable logging tool to get report for troubleshooting.

http://technet.microsoft.com/en-us/library/bb936621(v=office.12).aspx

Please try to use Meeting Now in Lync client and add multiple users into conference to test the issue.