>> And such a 64kbps channel is a DS0 standard.  24 DS0s multiplexed
>> together make 1 DS1 (which is commonly carried on a T1 physical
>> interface).  [And 30 DS0s make a European E1 capacity circuit.]
>> 30 DS1s make a DS3 which is usually carried on copper as a T3.

> Isn't it 32 DS0 streams for an E1 (2.048Mb/s), with one or two
> (there is some variation from country to country) of the DS0's
> reserved for signaling?  As a user of a rented E1, you can get
> 30 slots, and in some countries 31 slots.

My mistake; I believe you are correct that an E1 is 2.048Mbps and
would be 32 x DS0.  Thanks for correcting my error.

                                                Lee Jones

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