asterisk users - Jul 2017 - Moving call DAHDI from channel X to Y.

I am seeing the in the asterisk logs that channels (PRI ISDN)  are
being moved ..

[Jul 29 16:31:48] VERBOSE[16125] logger.c:     -- Moving call
(DAHDI/57-1) from channel 57 to 58.

I then see the moved channels with a "0:" in front of it.

[Jul 29 16:31:48] VERBOSE[26691] logger.c:     -- Hungup 'DAHDI/0:58-1'

Any ideas why this could be happening?

I believe these messages are coming from chan_dahdi.c and the
"pri_fixup_principle" function.

-- 
Cheers,

Daniel

I remember seeing something like this a long time ago.  If memory serves me
correctly it was a problem at the physical layer and a couple of the PRI
cables got flipped and plugged into the wrong port.  I had to change the
configs since I didn't have physical access to the box.

Thanks,
Steve

On Sun, Jul 30, 2017 at 9:34 PM, Daniel Harper <daniel at harper.net.nz>
wrote:
> I am seeing the in the asterisk logs that channels (PRI ISDN)  are
> being moved ..
>
> [Jul 29 16:31:48] VERBOSE[16125] logger.c:     -- Moving call
> (DAHDI/57-1) from channel 57 to 58.
>
> I then see the moved channels with a "0:" in front of it.
>
> [Jul 29 16:31:48] VERBOSE[26691] logger.c:     -- Hungup
'DAHDI/0:58-1'
>
> Any ideas why this could be happening?
>
> I believe these messages are coming from chan_dahdi.c and the
> "pri_fixup_principle" function.
>
> --
> Cheers,
>
> Daniel
>
> --
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On Sun, Jul 30, 2017 at 8:34 PM, Daniel Harper <daniel at harper.net.nz>
wrote:
> I am seeing the in the asterisk logs that channels (PRI ISDN)  are
> being moved ..
>
> [Jul 29 16:31:48] VERBOSE[16125] logger.c:     -- Moving call
> (DAHDI/57-1) from channel 57 to 58.
>
> I then see the moved channels with a "0:" in front of it.
>
> [Jul 29 16:31:48] VERBOSE[26691] logger.c:     -- Hungup
'DAHDI/0:58-1'
>
> Any ideas why this could be happening?
>
> I believe these messages are coming from chan_dahdi.c and the
> "pri_fixup_principle" function.
>
This is a normal thing that can happen when doing B-channel selection
as a part of the call setup process.  If one side disagrees with the
initial choice for B-channel, the other side can request that it be
moved in the reply.  It's more likely to happen on busy PRIs with
bidirectional (ingress and egress) traffic.

Hope that helps!

-- 
Matthew Fredrickson
Digium, Inc. | Engineering Manager
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA