c6dbaba9_ent_Error_Codes___Tom_Talks_UC__Additional_Information
[Mode] Voice [Error Id] 485 [Error Message] Cannot contact [user name]. [Additional Information] 
There is more than one contact with the same phone number. Try calling again. If you still cannot complete the call, contact your support team with this information.
Lync Client Error Codes | Tom Talks UC
Additional Information