Your company uses Office 365 for all users.
The company has the contoso.com SIP domain.
You need to change the SIP address of a user named User1 from userl@contoso.com to user2@contoso.com.
You must achieve this goal in the minimum amount of time.
What should you do?
A.
Modify the PrimarySmtpAddress attribute of User1.
B.
Add a proxy address to the properties of User1.
C.
Create a service request.
D.
Modify the sign-in status of User1.
Explanation:
Why is C?
I think B should be the correct one.
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You sure don’t need a service request to do that.
Changing the primary SMTP address is not a requirement (and also not a solution), and the sign-in status has nothing to do with the SIP address. Adding a “SIP:user2@contoso.com” proxy address is the correct solution.
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C. Create a service request > correct answer because of the following
Reason:-1
Even though you change or add sip:user2@domain.com in proxy address > It will not change the “Msrtcsip-Primaryuseraddress” attribute. If this is still pointing to old sip address then new sip address will not work even though it is added as an alias in Proxy address
Reason:-2
Will add the sip address user2@contoso.com in the proxy address attribute. It does not say replace/modify user1@contoso.com with User2@contoso.com under Proxy address attribute
In this case user will end up with two SIP addresses and by default the first sip[:user1@contoso.com will be used to sign into Lync as Msrtcsip-Primaryuseraddress is still pointing to old one i.e SIP:user1@contoso.com”
Reason-3
Proxy address will only be applicable if the user is synced with AD to O365. If the user is a pure cloud user > then Set-csonlineuser command needs to be run to change/modify the user’s SIP address > or if this user is a synced user and you are running hybrid then set-csuser cmd wil be used and Msrtcsip-Primaryuseraddress has to be also changed
Hence C is the correct one as A&D does not fit
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