[Freeswitch-users] Is it possible to use att_xfer on channels already bridged via loopback?

[João Mesquita]

I am just now discussing this with another developer and the question that
is never answered is:

Why are you trying to use att_xfer if it is your endpoint's duty to make the
transfer? Are you using SIP?

Regards,
João Mesquita


On Mon, Jan 24, 2011 at 1:01 PM, Dmitry Sytchev <kbdfck at gmail.com> wrote:

> Is att_xfer or mod_loopback is broken in FS-current?
> I use FreeSWITCH Version 1.0.head (git-7eceff4 2011-01-16 22-33-50 +0000)
> Seems there were no updates of att_xfer or mod_loopback since that.
>
> I use loopback channel as destination when doing att_xfer to re-enter
> dialplan.
> With loopback_bowout=false and loopback_bowout_on_execute=false this
> works. But when any of connected parties tries to do att_xfer again,
> all channels get hangup on transferer hangup.
>
> Scenario:
>
> A calls B, B answers
> A launches att_xfer via *7, B listens to MOH
> A dials C and we do att_xfer to loopback/C
> C answers, A hangs up to complete transfer
> C and B are now bridged via loopback, `show channels` shows 4 channels
> include 2 loopback legs.
>
> Now, C also tries to do in-call transfer with *7.
> C launches att_xfer via *7, B listens to MOH
> C dials D and do att_xfer to loopback/D
> D answers, C hangs up to complete transfer
> B and D are hung up instead of be bridged together.
>
> There are also issues with MOH wile running att_xfer, but they are not
> so important as att_xfer behavior itself.
>
>
>
> --
> Best regards,
>
> Dmitry Sytchev,
> IT Engineer
>
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