[asterisk-users] E1 Channel Numbering - Your Comments.

[Jared Smith]

On Tue, 2009-12-08 at 14:47 -0300, Andrew Latham wrote:
> As most of us already know an E1 has 32 channels of which 30(1-15
> 17-31) are B-channels and 1 (16) is a D-Channel.  The 32nd channel is
> not presented in Asterisk Zaptel/DAHDI.  There are other
> configurations but this is the most common.

As an aside, I've seen different documentation in various places that
shows this "sync" channel as being channel zero (coming before the first
bearer channel), not the 32nd channel.  I'm not familiar enough with E1s
myself to be able to say definitively that this is the case, but thought
I'd throw this out there for discussion (and hopefully more
enlightenment).

--
Jared Smith
Digium, Inc.