Originate and transfer from trunk buttons fails

[Víctor Fernández <victor.fernandez@xxxxxxxxxxxx>]

Hi! I'm using FOP 0.29. I have a channel with 3 trunk buttons. Whenever I try 
to originate or transfer a call from that channel it fails. Earlier I had 
only one button for that channel and it was working properly but since I 
turned it into a trunk button it's failing.

I have seen using the debug log that FOP is using an Action: Originate like 
this:

192.168.123.40  -> Action: Originate
192.168.123.40  -> Channel: SIP/500=1
192.168.123.40  -> Async: True       
192.168.123.40  -> Callerid: "500 John Doe" 1 <>
192.168.123.40  -> Exten: 510                          
192.168.123.40  -> Context: default                    
192.168.123.40  -> Priority: 1

Channel: SIP/500=1 ? The right channel name is SIP/500. But in op_buttons.cfg 
I have:

[SIP/500]
Position=1-3
Label="500 John Doe"
Extension=500
Context=numberplan-custom-2
Mailbox=500@xxxxxxx
Icon=1
Server=1

Where does the "=1" come from? I think this is a FOP bug. Tweaking 
op_server.pl I added this at line #7369:

($origin_channel) = split( /=/, $origin_channel);

And the Originate is working properly now. However, I don't know if this is 
the right way to fix it since I don't know Perl.