Signing In

After the client is installed, a user can try to sign in. In a typical corporate environment the user’s SIP address is automatically detected from Active Directory and credentials are passed to Lync transparently, so no action is required.

In some cases the user might need to enter a SIP address and password. If the user’s SIP address is not the same as the user principal name (UPN) within Active Directory, the user will also be challenged for the NetBIOS domain name and username.

If automatic sign-in cannot be used, the server settings can be manually configured through the Lync options. Click the Options icon on the right side of the screen, click Personal, and then click the Advanced button. Select Manual configuration and then enter an internal and external server name. The format for these entries should be <Lync Pool FQDN>:<Port Number>. The internal server port will typically be 5061 while the external server port is usually 443.