[OpenSER-Users] t_on_branch -- using drop() question?

[Zahid Mehmood]

I was looking at the openser config generated using the online  
sipwise wizard.  They implement conditional call forwarding using:

if($avp(s:cfc) != NULL)
         {

                 avp_pushto("$ru", "$avp(s:cfc)");
                 setflag(29);
                 append_branch();

                 t_on_branch("1");
                 xlog("L_INFO", "CFC detected - M=$rm RURI=$ru F=$fu  
T=$tu IP=$si ID=$ci\n");
                 route(13);
         }



branch_route[1]
{
         if(is_domain_local("$rd"))
         {

                 xlog("L_INFO", "Dropping local branch - M=$rm RURI= 
$ru F=$fu T=$tu IP=$si ID=$ci\n");
                 drop();
         }

}


Suppose an invite gets to this point and ruri is changed to another  
local user.  does this drop() in branch_route prevents that invite to  
be relayed?  does it still go through route(13) ?

I'm still a newbie trying to better understand the working of openser  
functions.  I'll greatly  appreciate if someone can briefly describe  
when it makes sense to use "append_branch()"

Thanks in advance for your help.

-- 
Zahid