Eric Bishop wrote:
Hi all,
I have seen the term E1 and PRI used interchangably when referring to a voice service with 30B channels and 1 D channel. Are they just different terms for the same thing or is there some technical difference. Even Newton's telco dictonary seemed a bit fuzzy on this topic. I have seen it said the PRi is a protocol that runs on top of E1. Is this true?
Think of E-1 as Ethernet (transport) and PRI as IP (protocol).
You could also think of E-1 as IP and PRI as TCP.
You can also think of E-1 as TCP/IP and PRI as FTP.
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