[Opalvoip-user] Add existing call to conference

[Martin H. <mh...@tm...>]

Hi,
 
I'm using Opal 3.8.2 with the opalmixer class.
What is the preferred way to add an exisiting call to a conference (MCU)?
I can create a new call in a MCU with SetUpCall("mcu:"+node->GetGUID().AsString(), target, callToken).
But how can I put an existing call created with SetUpCall("pc:*", target, callToken) into a MCU? 
I tried it with call->Transfer("mcu:"+node->GetGUID().AsString(), conn) and it seemed to work.
But if I try to add a second call to conference with call->Transfer() I get a deadlock.
I think it is not the right way to use call->Transfer() in this case.
But what is the right way?
 
 
Best regards
Martin Hillmeier