I recently added another SIP domain and it is working fine. However I had a question regarding the "New Lync Meeting" URLs sent from outlook and the simple URLs. Suppose I was in the company with this meeting URL.

meet.mycompany.org/subcomany/767adfa

and now, I change my to a different sip domain:

meet.mycompany.org/newcompany/76afdf

My question is, when I try the old URL, it comes back with invlaid meeting URL. Does this mean users who transfer to the new company will have to reschedule their meetings to reflect the new company

Hi,

Yes, if you change the user SIP domain he needs to update his meetings to reflect the new meet URL.

David

Check this out for more information - 

http://blog.insidelync.com/2013/06/anatomy-of-a-sip-domain-change/

http://blog.insidelync.com/2013/07/anatomy-of-a-sip-address-change-part-2/

Hi,

Any existing Lync Meetings a Lync user had scheduled before the SIP change will not work after the SIP change. The user will need to recreate any previously scheduled meetings.

Best Regards,

Eason Huang