c6dbaba9_ent_Error_Codes___Tom_Talks_UC__Additional_Information
[Mode] Voice [Error Id] 484 [Error Message] Please check the number and try again. [Additional Information] 
The format of the number you dialed is not valid. Examples of valid dialing formats: 1+(555) 555-0123 (555) 555-0123 9+1+(555) 555-0123 011+ 12 34 56 78 99 If you continue to be unable to successfully make a call, please contact your support team.
Lync Client Error Codes | Tom Talks UC
Additional Information