#2] After a SIP Address Change the Lync User is Automatically Signed-Out of their Existing Lync Client Sessions In Lync 2013 here is what a Lync user will experience when attempting to join a meeting that was previously scheduled by a Lync user whose SIP address changed: Users will have to be notified that after the new SIP address comes into affect they will need to recreate any previously scheduled meetings. Much like changing the right-hand side (domain portion) of the SIP address will cause existing Lync Meetings any Lync user had scheduled before the SIP change to break after the SIP change, the same holds true for SIP address changes involving the left-hand side (aka user name portion). Here are 6 of the most significant things you need to know about changing the left-hand side of a SIP address: LyncUserB: another Lync user with LyncUserA in their contact list. LyncUserA: the Lync user whose SIP address has changed (the user name portion). The user impact is best described with two sample Lync users: Many of the experiences are the same as when the right-hand-side (domain portion) of the SIP address change but there are some important differences. This blog post details some lessons learned after the left-hand side of the SIP address changes based on testing that fellow MVP Pat Richard and I have done. after a life event such as marriage).Ĭhanging a SIP address is not an exact science. Changes to the left-hand-side usually occur when there are changes to user name formats, or a user has a name change that affects the user name portion of the SIP Address (e.g. This blog entry will describe the user experiences when the left-hand-side is changed (i.e. My previous blog entry “ Anatomy of a SIP Domain Change” looked at the user impact and process of changing the domain portion (right-hand-side) of a Lync user SIP addresses.

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