[asterisk-users] Moving call DAHDI from channel X to Y.

[Daniel Harper]

Thanks for the response. Investigating the logs I think the (outbound)
channel is being moved just after a inbound call.

We have a AMI application that sits on top of asterisk and we want to
know when a channel is moved. (i.e. we might move the agent channel
and outbound channel into a meetme room to do playback etc)

I guess the only option we have would be to patch the source to
generate a custom AMI event which would be difficult to test given the
it happens perhaps 1-2 times per 10,000-20,000 calls!

Thanks
Daniel


>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

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Re: [asterisk-users] Moving call DAHDI from channel X to Y.

[Matt Fredrickson]

On Sun, Jul 30, 2017 at 8:34 PM, Daniel Harper  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

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Re: [asterisk-users] Moving call DAHDI from channel X to Y.

[Steve Totaro]

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  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
>
> --
> _
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
> Check out the new Asterisk community forum at: https://community.asterisk.
> org/
>
> New to Asterisk? Start here:
>   https://wiki.asterisk.org/wiki/display/AST/Getting+Started
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>http://lists.digium.com/mailman/listinfo/asterisk-users
>
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[asterisk-users] Moving call DAHDI from channel X to Y.

[Daniel Harper]

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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