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ISDN Protocol Components

ISDN-protocol-components

This topic is an overview of the ISDN technology components, which are relevant to the Cisco network engineer and network administrators. ISDN is a layer 3 technology that is based on the following protocols: Q.931 LAPD So ISDN is a ... Read More »

E1 PRI, T1 PRI and ISDN BRI

In this post, we will understand the nuances between the following concepts: TDM links and interfaces T1, T1 PRI, E1, E1 PRI, ISDN BRI E1 and T1 E1 and T1 are two TDM technologies; they leverage Time Division  Multiplexing to ... Read More »

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