Use the Advanced Connections Settings dialog box to select either automatic or manual configuration of connections to the communications service, if and as directed by your support team.
What do you want to do?
Use automatic configuration
Open Microsoft Lync Online communications software, click the Options button, click Personal, click the Advanced button, and then click Automatic configuration to let Microsoft Lync communications software automatically configure your connection settings.
Use manual configuration
Open Lync Online, click the Options button, click Personal, click the Advanced button, click Manual configuration, and then use the information provided by your support team to configure the following information:
Internal server name or IP address Type the fully qualified domain name (FQDN) or the IP address of your Lync Server.
External Server name or IP address Type the FQDN or the IP address of your Lync Server, Edge Server.
Connect using Click the appropriate connection protocol for your network.