How can I change the transfer behavior of Asterisk?
I explain, my problem is when I try to manage a multiasterisk VoIP platform through Proxy SIP. When a UAC try transfer two calls that they are in different asterisk fails, because when a asterisk receive a REFER try join the calls… ups!
I need that the asterisk behavior is the same that a phone, I mean, the asterisk dial a call to other asterisk to join calls.
Is this possible? Can I make this without changes in chan_sip?