| Subject | English | Spanish |
| comp., MS | puff and sip device | dispositivo de succión y soplo (An assistive computer technology for people with mobility impairments. A puff and sip device is a head-mounted alternative to using the mouse. The device allows a user to move the mouse pointer without using his or her hands by puffing air into a tube) |
| environ. | SCP/SIP Action Plan | Plan de Acción sobre Consumo y Producción Sostenibles y una Política Industrial Sostenible |
| comp., MS | SIP address | dirección SIP (A URI that identifies an end node in a SIP network. The format of a SIP address is identical to that of an e-mail address) |
| comp., MS | SIP domain | dominio SIP (A domain that is configured to accept SIP traffic) |
| comp., MS | SIP phone | teléfono SIP (A desktop telephone that, in addition to providing standard telephony features, connects to the Internet through SIP) |
| comp., MS | SIP/PSTN gateway | puerta de enlace SIP/RTC (A device that translates signaling and media in different formats between the Enterprise Voice infrastructure and a public switched telephone network (PSTN) or private branch exchange (PBX)) |
| comp., MS | SIP trunking | enlace troncal SIP (A mechanism for connecting the voice network of an enterprise to a service provider that offers public switched telephone network (PSTN) origination, termination, and emergency services without deploying PSTN gateways) |
| comp., MS | UC SIP phone | teléfono SIP para UC (A SIP phone that integrates with the Communicator client) |
| comp., MS | Unified Communications SIP phone | teléfono SIP para comunicaciones unificadas (A SIP phone that integrates with the Communicator client) |