What is Reverse Number Lookup (RNL) When you receive calls in your Teams client Reverse Number Lookup (RNL) will show the displayname instead of the actual phone number.
With RNL the system converts the number that is calling you to a name configured in your outlook contact or even Azure Active Directory.
The following order will be used to check and the last one will always override:
SIP Invite From Header Azure Active Directory Outlook contacts Teams contacts Requirements Exchange The callee, in your tenant, needs to have a Exchange Online mailbox.
Continue reading
