I have discovered an issue with changing SIP domain in Lync 2010. Even though the process is described in many online blogs and conversations, I can't find anyone experiencing the following issue.
After changing default SIP domain in a Lync 2010 infrastructure, everything goes as planned. Clients that already were using Lync and had their sip address changed, work fine after logging in again with the new sip address. But there is a hidden problem.
If this user sends an online meeting invitation using Outlook 2010, the meeting SimpleURL that is included in the message is from the old domain, not the one belonging to the new domain.
The only way to correct this seems to be to delete the mail account and add it again. Nothing else I tried worked.
Any ideas?