| Subject | English | Spanish |
| comp., MS | globally routable user agent URI | URI de agente de usuario globalmente enrutable (A URI that a SIP program can use to route a call to a specific agent) |
| IT | user agent entity | entidad de agente de usuario |
| IT | User Agent Layer | capa de agente de usuario |
| commun., IT | user agent status report | informe de estado de un AU |
| commun., IT | user agent status report | informe de estado de un agente de usuario |
| comp., MS | user agent string | cadena de agente de usuario (A string that identifies a user's web browser and provides details about the user's computer system to web servers hosting the websites that the user visits) |
| IT | user agent sub-layer | subcapa de agente de usuario |