Unified Communications Certificates, also known as UC Certificates, or UCC Certificates give you full control of the Subject Alternative Name field so you can secure as few or as many host names as you like with just one SSL certificate. Although UC certs are usually used in conjunction with Microsoft Exchange Server 2007 or 2010, they can be used with any major server type to secure multiple distinct hostnames in one certificate using the "Subject Alternate Name" field.
