[OpenSIPS-Users] redirect an already-established call to another host?

[Bogdan-Andrei Iancu]

Hi,

An established call cannot be redirect, but it can be transferred to 
another SIP endpoint. See the SIP attended and unattended (blind) transfer.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
OpenSIPS Bootcamp 2021 online
   https://opensips.org/training/OpenSIPS_eBootcamp_2021/

On 4/23/21 12:31 PM, Kingsley Tart wrote:
> Hi,
>
> Is it possible to redirect a call to another endpoint if the call and
> media path has already been established?
>
> We have a number of Asterisk boxes and have OpenSIPS forwarding calls
> to these using load balancing logic.
>
> One of the services these Asterisk boxes perform is conference calls,
> so all callers to a particular conference need to go to the same
> Asterisk box.
>
> The issue is that we cannot determine the conference by the number
> called. The user calls, gets connected to Asterisk and then uses DTMF
> to enter a conference number. It is only then that we know which
> conference it is.
>
> Currently, the Asterisk box then has to check a central database to see
> whether that conference has any other participants and if so which
> Asterisk box is hosting it. If on a different box, Asterisk has to make
> a SIP call to the box where the conference is, so the user's call is
> going through two Asterisk boxes by this point.
>
> It would be nice if there was a clean way for the Asterisk box to tell
> OpenSIPS which asterisk box to go to, and then have OpenSIPS forward
> the call there instead.
>
> Is this possible?
>
> Cheers,
> Kingsley.
>
>
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