| Subject | English | German |
| comp., MS | unified communications | einheitliches Kommunikationssystem, Unified Communications (A system that integrates platforms for communications including e-mail, voice mail, telephony, instant messaging, and voice and video conferencing) |
| comp., MS | Unified Communications SIP phone | SIP-Telefon für Unified Communications (A SIP phone that integrates with the Communicator client) |