On Wed, Jan 15, 2014 at 05:02:10PM +0000, Rodrigo Borges Pereira wrote:
> No, I see this:
> 

[snip]

> shell> cat /proc/dahdi/1
> Span 1: TE2/0/1 "T2XXP (PCI) Card 0 Span 1" B8ZS/ESF LOOP
> 
>    1 TE2/0/1/1 Clear Master RED
>    2 TE2/0/1/2 Clear RED
>    3 TE2/0/1/3 Clear RED
>    4 TE2/0/1/4 Clear RED
>    5 TE2/0/1/5 Clear RED
>    6 TE2/0/1/6 Clear RED
>    7 TE2/0/1/7 Clear RED
>    8 TE2/0/1/8 Clear RED
>    9 TE2/0/1/9 Clear RED
>   10 TE2/0/1/10 Clear RED
>   11 TE2/0/1/11 Clear RED
>   12 TE2/0/1/12 Clear RED
>   13 TE2/0/1/13 Clear RED
>   14 TE2/0/1/14 Clear RED
>   15 TE2/0/1/15 Clear RED
>   16 TE2/0/1/16 Clear RED
>   17 TE2/0/1/17 Clear RED
>   18 TE2/0/1/18 Clear RED
>   19 TE2/0/1/19 Clear RED
>   20 TE2/0/1/20 Clear RED
>   21 TE2/0/1/21 Clear RED
>   22 TE2/0/1/22 Clear RED
>   23 TE2/0/1/23 Clear RED
>   24 TE2/0/1/24 Clear RED

That explains it. Your channels are bound together in one clear
channel on span 1. When configured this way, you can only open the
"master" channels. All the data from the other channels (timeslots)
are then added to this master channel.

-- 
Shaun Ruffell
Digium, Inc. | Linux Kernel Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at: www.digium.com & www.asterisk.org

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