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ISDN o RDSI (Red Digital de Servicios Integrados)

Una serie (serie I) de estándares de la ITU para el servicio telefónico digital. El ISDN se proporciona generalmente en dos variantes:

  • BRI: nunca fue muy popular pero aun existe en Norteamérica.
  • PRI: el servicio de PRI es extensamente popular, y se entrega generalmente sobre un circuito T1 o E1.

Inglaterra
En Inglaterra, BRI es muy popular y se la conoce como ISDN2. La señalizacion puede ser punto a punto (donde se utilizan DDIs) o punto a multipunto (MSNs). PRI se entrega sobre E1 y se la conoce como ISDN30 (sin importar el número de canales activos).la señalizacion es punto a punto solamente.

Vea también

 

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