[Freeswitch-users] Replace One Session with Another

Stanislav Sinyagin ssinyagin at gmail.com
Mon Aug 8 18:50:23 MSD 2016

I think it's doable via ESL, but needs testing.

For example, the B's leg goes to park(), and then you hangup A and
bridge the C's session to B. Then you can also copy important
variables between channels via uuid_getvar and uuid_setvar.

Also mod_conference might be of help, although it would put extra load
on the CPU.

On Mon, Aug 8, 2016 at 4:35 PM, Colin Morelli <colin.morelli at gmail.com> wrote:
> Hey all,
> I asked this question a little while back and didn't get a response but I
> worked around the issue for a while so I had never followed up. Now I'm
> facing some other issues and would like to see if there's an answer to this
> out there (or if it needs to be built).
> I'm looking to get behavior like the "pickup" channel, but at any point
> during a call. Say I have channel A on a call with channel B. Channel C
> calls, and I want it to take the place of A such that C is now talking to B.
> In this particular case, intercept could work, but I have two issues with
> that:
> 1. I would like to copy all channel vars from A to C
> 2. I would like to be able to do the same thing at any point during a call.
> Even if A is not currently bridged to another endpoint. As I understand,
> intercept connects you with an existing call, it doesn't replace anything.
> So logically it would only work when there's another endpoint to bridge you
> to.
> Essentially, I want to swap sessions. Have everything that A is doing
> replaced with C, and drop A. This actually appears to be what the pickup
> channel does (I have noticed all channel vars are copied), but pickup only
> works during bridging.
> Is this possible to do?
> Best,
> Colin
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