[Freeswitch-users] 1 legged call tranfer hacks

Srigo Kanapathipillai ksrigo at gmail.com
Wed Apr 11 05:23:20 UTC 2018


Did you try to use in your orginate command

Like this when you get a refer from your B leg, you catch the refer and
generate a bridge to refer_to_uri using your sip gateway in the above
dialplan context.

I know it works with unattended refer message (without Replaces in refer_to
uri) but i guess you can manipulate sip headers to make it work with
attended transfer.


On Wed, 11 Apr 2018, 07:47 Sharath Kumar, <shakumarsoftware at gmail.com>

> Hello,
> I use Freeswitch as a client. I am on version 1.6.20. I originate an
> outbound call via a SIp gateway the after the call is connected the far end
> (B party) sends me(the Freeswitch client-  A party) a REFER to C. I
> understand that this is not supported. I was reading about loopback and
> also sofia loopback will help to have the extra dummy channel but it is not
> clear how to use them in this scenario. I just have an originate command to
> work with that I origiate to a SIP gateway. Should I first originate to a
> loopback and park it and then bridge it ? Any hints or suggenstions will be
> greatly appreciated?
> thank you,
> Shaks.
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