Hi Srigo,

So, the calls between FS and Bob/Charlie are 2 different SIP calls, right ? and you do EBR on each of them (on the OpenSIPS with usrloc, rigth ?

As I understand from your description, the faulty step is the last one when David takes a CANCEL too, right ? Do you have pcaps + debug logs for this scenario ?

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  http://www.opensips-solutions.com
OpenSIPS Bootcamp 2018
  http://opensips.org/training/OpenSIPS_Bootcamp_2018/

On 10/05/2018 12:40 PM, KSrigo wrote:
Hi,

I'm currently trying to add call pickup feature using event_routing module. It 
seems to work fine when I have only ONE inbound call to a given call group but 
when I have two calls to the same call group at the same, It's not working 
properly

Here is my scenario:

                                                                --> Opensips1 
(usr_loc) --> Bob
Alice --> Opensips1 --> Freeswitch (fork)
                                                                --> Opensips1 
(usr_loc) --> Charlie

David tries to pickup the phone ringing on Bob and Call (which is the same call 
because it's a fork but different A leg call_id)
Bob, Charlie and David are in the same pickup group.

When Bob and Charlies ring, David dials *0 to pick the call:
        * Opensips immediately send an Invite to David for one of the incoming 
call (randomly choosen). Let's say for Bob
        * Opensips send a Cancel to Bob
        * Opensips send again the previous Invite to David (for the same A leg)
        * Opensips send a Cancel to David


Here is my opensips code:

     dp_translate("DP_FEATURE", "$rU/$rU", "$var(attrs)");
     #Is it a callpickup?
     if($var(attrs) =~ "call_pickup" && $avp(caller_pickup_grp) != "") {
         t_newtran(); # 100 Trying is fired here
         send_reply("480","Gone");

         #extension can belong to multiple group so let's raise an event for 
each group
         $var(p) = 0;
         $var(caller_pickup_grp_len) = 0;
         $var(caller_pickup_grp_len) = $(avp(caller_pickup_grp){csv.count});
         while ($var(p) < $var(caller_pickup_grp_len)) {
             $avp(attr-name) = "group";
             $avp(attr-val) = $(avp(caller_pickup_grp){csv.value,$var(p)});
             xlog("L_NOTICE","$rm $ci hunting2: Caller pickup group [$avp(attr-val)] 
for [$fu]");
             $avp(attr-name) = "picker";
             $avp(attr-val) = $fu;
             raise_event("E_CALL_PICKUP", $avp(attr-name), $avp(attr-val));
             $var(p) = $var(p) + 1;
         }
         exit;
     }


     if (isbflagset(USRLOC_FOUND) && $avp(callee_pickup_grp) != ""){
         t_newtran();
         $var(p) = 0;
         $var(callee_pickup_grp_len) = 0;
         $var(callee_pickup_grp_len) = $(avp(callee_pickup_grp){csv.count});
         while ($var(p) < $var(callee_pickup_grp_len)) {
             #$avp(filter) = "group=1";
             $var(group)=$(avp(callee_pickup_grp){csv.value,$var(p)});
             $avp(filter) = "group="+$var(group);
             xlog("L_NOTICE","$rm $ci relay: Callee pickup group [$var(group)]. 
Raise event");
             notify_on_event("E_CALL_PICKUP","$avp(filter)","handle_pickup", 
"20");
             $var(p) = $var(p) + 1;
         }
     }

     if (!t_relay()) {
         xlog("L_WARN","$rm $ci relay: 500 Internal Server Error (t_relay 
failure)");
         t_reply("500","Internal Server Error");
         $avp(reason) = "SIP;cause=500;text=INTERNAL SERVER ERROR";
         route(REASON);
     }
     exit;


Any idea, what I missed here?

Thanks in advance for your help
Srigo




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