/mcp(Applicable to Release 15 SU2 or later) Authenticated Security mode is not supported on the Unity Connection server when the minimum TLS version is configured as 1.3. Note Port Group Settings You can change the settings of a port group after it has been added. Changes to the settings affect only the voice messaging ports that belong to the port group. Port Group Basics Message Waiting Indicators (MWI) An MWI is a flashing LCD panel or special dial tone on user phones, which allows the user to know that a voice message is waiting. The type of indicator depends on the phone system and the user phones. Phone systems that support message counts may also display the number of messages that the user has. To change the MWI settings, on the Port Group Basics page of a selected port group, change the applicable settings in Message Waiting Indicator Settings and select Save. Session Initiation Protocol (SIP) Settings You can change the SIP settings after the phone system integration has been created. Cisco Business Edition does not support phone system integrations that use SIP. Note To change the SIP settings, on the Port Group Basics page of a selected port group, change the applicable settings in Session Initiation Protocol (SIP) Settings and select Save. Servers Cisco Unified Communications Manager Servers For Cisco Unified Communications Manager integrations, Related Links helps you to integrate with one Cisco Unified CM server only. The secondary Cisco Unified CM server in the cluster must be added after the integration is completed. You can change the Cisco Unified CM server settings after the server has been added. You can delete a Cisco Unified Communications Manager server when it is no longer used by the phone system integration. If you want to move a Cisco Unified CM server to another port group, you must delete the Cisco Unified CM server from one port group and add it to the second port group. Cisco Business Edition does not support adding or deleting secondary Cisco Unified CM servers. Note System Administration Guide 70 Telephony Integration Port Group Settings