You can hot-swap voice modules. This means that you can add or remove a voice module in the Branch Gateway or EM200 while the system is running, without any disruption to your network. Configuration of the Branch Gateway is not necessary when you add or remove a voice module. Configuration is only necessary when you add telephones, fax machines, and trunks to the new module. See Adding a telephone and Adding a trunk.

Some configuration of the Avaya Aura® Communication Manager is necessary when you install an MM710, MM710B, MM720, MM721, or MM722 media module. See Administering Avaya Aura® Communication Manager. Also, for an MM710, MM720, MM721, or MM722, it is usually advisable to set the media module as the synchronization source of the Branch Gateway. For information about setting the synchronization source of the Branch Gateway, see the Avaya Branch Gateway G430 CLI Reference.