Add domain entry

Use this dialog box to add a domain that you have prepared for Office Communications Server.

SIP domain

Enter the fully qualified domain name (FQDN) of the domain that you want to enable for Session Initiation Protocol (SIP).

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Domains are individually enabled for SIP. Therefore, if you have multiple domains in your organization, you can enable one domain for SIP while not enabling SIP for other domains. By enabling individual domains for SIP, you can also apply Group Policy according to the domain. By applying Group Policy per SIP domain, the users of one domain can have access to a different set of Office Communications Server features than the users of another SIP domain.

When you add a domain to Office Communications Server, you use the domain's FQDN. An FQDN begins with the name of a host computer and ends with a top-level domain. For example:

example.contoso.com

example.sales.contoso.com

For details, see the Operations section of the Office Communications Server Technical Library.