>Plain wrong. PRI on E1 gives you 30B+D, plus one synchronization channel.
>E1-PRI maps as channel 0 is synchronization, channels 1-15 are B channels,
>channel 16 is the D channel, and 17-31 are B channels.
>
>Channelized E1 *also* gives you 30 user channels. Channel 0 is still sync,
>and channel 16 becomes the channel-associated-signaling bits. In the US,
>we put the CAS bits on every 6th frame in the user channel (thus dropping
>the bandwidth per DS0 to 56K). In Europe, they mux this on a separate 64K
>channel so that each DS0 is a 64K clear channel.
-MZ
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