asterisk users - Nov 2017 - How to correctly set REDIRECTING to indicate diversion reason

Hello List

Next question where google did not spit out an unsable answer.

When redirecting a call with Transfer, I would like to correctly
indicate the reason.

I did try this:

exten => XX,1,NoOp(Call to ${EXTEN} from ${CALLERID(all)})
exten => XX,n,Dial(SIP/ZZ)
exten => XX,n,set(REDIRECTING(reason)=cfb)
exten => XX,n,Transfer(SIP/YY)

I did try with 'reason' 'orig-reason' I added cfb with and only
quotes,
I did try cfnr.

But the 302 message generated this way allways contains reason=unknown
in the diversion header.

Any hint welcome.

-Beno?t Panizzon-
-- 
I m p r o W a r e   A G    -    Leiter Commerce Kunden
______________________________________________________

Zurlindenstrasse 29             Tel  +41 61 826 93 00
CH-4133 Pratteln                Fax  +41 61 826 93 01
Schweiz                         Web  http://www.imp.ch
______________________________________________________

On Mon, Nov 20, 2017 at 8:43 AM, Benoit Panizzon <benoit.panizzon at
imp.ch>
wrote:
> Hello List
>
> Next question where google did not spit out an unsable answer.
>
> When redirecting a call with Transfer, I would like to correctly
> indicate the reason.
>
> I did try this:
>
> exten => XX,1,NoOp(Call to ${EXTEN} from ${CALLERID(all)})
> exten => XX,n,Dial(SIP/ZZ)
> exten => XX,n,set(REDIRECTING(reason)=cfb)
> exten => XX,n,Transfer(SIP/YY)
>
> I did try with 'reason' 'orig-reason' I added cfb with and
only quotes,
> I did try cfnr.
>
> But the 302 message generated this way allways contains reason=unknown
> in the diversion header.
>
> Any hint welcome.
>
You need to set more redirecting information [1].

In sip.conf send_diversion=yes needs to be in effect.  You also need to
setup
the from party id information (at least the from number) to indicate where
you
are redirecting from.  You should also increment the redirecting count.

chan_pjsip has the same requirements.  pjsip.conf send_diversion=yes needs
to
be in effect and you also need to setup the from party id information.

Richard

[1]
https://wiki.asterisk.org/wiki/display/AST/Manipulating+Party+ID+Information
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.digium.com/pipermail/asterisk-users/attachments/20171120/b698d0e7/attachment.html>

Hi Richard

Thank you
> You need to set more redirecting information [1].
> 
> In sip.conf send_diversion=yes needs to be in effect.  You also need
> to setup
> the from party id information (at least the from number) to indicate
> where you
> are redirecting from.  You should also increment the redirecting
> count.
> 
> Richard
> 
> [1]
>
https://wiki.asterisk.org/wiki/display/AST/Manipulating+Party+ID+Information
I'm back to chan_sip to get quicker progress in our test scenario as I
know this better than pjsip :-)

send_diversion=yes is the default if it is not set, so that's correctly
set.

I altered my test dialplan and got some success but also another weird
problem now:

exten => XX,1,NoOp(Call to ${EXTEN} from ${CALLERID(all)})
exten => XX,n,Progress
exten => XX,n,Ringing
exten => XX,n,Wait(10)
exten => XX,n,set(REDIRECTING(from-num)=${EXTEN})
exten => XX,n,set(REDIRECTING(reason)=cfnr)
exten => XX,n,Transfer(SIP/ZZ)

How everytime REDIRECTING is called, this causes a 181 call is being
forwarded to the caller, but containing no diversion information.

The Transfer (302 Moved Temporarily) contains two Diversion: headers,
one with reason=unknown and one with reason=no-answer which would be the
correct one.

I start to think I stumbled over a bug. Maybe using REDIRECTING() would
set the correct headers if I used DIAL to forward the call. But I don't
want to create a second call leg. So maybe Transfer already is setting
a Diversion: header with hardcoded reason 'unknown'.

-Beno?t Panizzon-
-- 
I m p r o W a r e   A G    -    Leiter Commerce Kunden
______________________________________________________

Zurlindenstrasse 29             Tel  +41 61 826 93 00
CH-4133 Pratteln                Fax  +41 61 826 93 01
Schweiz                         Web  http://www.imp.ch
______________________________________________________