Lync 2010

We are using Team Call for a user called 'Helpdesk'. When someone calls 'Helpdesk', it also rings the Team Call members, however we have discovered it will not follow the team member's call forwarding or simultaneous ring settings.

So if the team call member is forwarding or simultaneously ringing a cell phone, the call stops at the Lync client and does not roll to the cell phone.

Is this a bug or limitation?

This is a limitation in Lync 2010 to avoid mobile voicemails picking up. Lync 2013 however will allow simultaneous ring for Delegates, and has a feature called Voicemail Escape that detects if a call was answered immediately without ringing, and can pull the call back.

Information on this here under the Enterprise Voice section - http://andrewmorpeth.blogspot.co.nz/2014/01/whats-new-in-lync-server-2013.html