[Freeswitch-users] Splitting a Call

Wed Mar 3 14:56:37 PST 2010

Answering my own question, parking the call with "uuid_transfer <uuid> -both
'park' inline" first keeps the other leg busy and things won't hang up.

-Anders

On Wed, Mar 3, 2010 at 4:53 PM, Anders Brownworth <abrownworth at bandwidth.com
> wrote:

> Hello fellow FreeSWITCH users,
>
> I'm using FreeSWITCH Version 1.0.trunk (16883) and I'm using the event
> socket to break an in-progress call into two independently controlled legs.
> I want to be able to work with each leg completely independently - hanging
> up one without affecting the other. Per the docs:
> http://wiki.freeswitch.org/wiki/Mod_commands#uuid_transfer I'm using
> uuid_transfer with an inline lua script to work with one leg without hanging
> up on the other. I'm setting "hangup_after_bridge" to false on both channels
> and invoking uuid_transfer with the -bleg option but as soon as I transfer,
> FreeSWITCH hangs up on one of the legs.
>
> Here's what I'm sending on the event socket. (everything gets an "OK"
> response from FreeSWITCH)
>
> Set hangup_after_bridge:
>
>
> api uuid_setvar 53d37581-1f90-44bf-860a-addbc8430e3a hangup_after_bridge
> false
> api uuid_setvar 9d1a4f2d-2ce6-40e5-ac84-62ad8c2d4654 hangup_after_bridge
> false
>
> And then do the uuid_transfer:
>
> api uuid_transfer 53d37581-1f90-44bf-860a-addbc8430e3a -bleg
> 'lua:callee.lua' inline
> api uuid_transfer 9d1a4f2d-2ce6-40e5-ac84-62ad8c2d4654 -bleg
> 'lua:caller.lua' inline
>
> The callee leg (53d37581-1f90-44bf-860a-addbc8430e3a) is immediately hung
> up and the caller leg runs fine. Here's the log messages: (6505551212 is the
> caller and 5165551212 is the callee)
>
> 2010-03-03 21:29:56.086319 [DEBUG] switch_ivr.c:1441 (sofia/external/+
> 16505551212 at 192.168.27.72) State Change CS_EXECUTE -> CS_ROUTING
> 2010-03-03 21:29:56.086319 [DEBUG] switch_core_session.c:1018 Send signal
> sofia/external/+16505551212 at 192.168.27.72 [BREAK]
> 2010-03-03 21:29:56.086319 [DEBUG] switch_core_session.c:638 Send signal
> sofia/external/+16505551212 at 192.168.27.72 [BREAK]
> 2010-03-03 21:29:56.086319 [NOTICE] switch_ivr.c:1447 Transfer
> sofia/external/+16505551212 at 192.168.27.72 to inline[lua:callee.lua at public]
> 2010-03-03 21:29:56.092461 [DEBUG] switch_core_session.c:638 Send signal
> sofia/external/+16505551212 at 192.168.27.72 [BREAK]
> 2010-03-03 21:29:56.092461 [DEBUG] switch_ivr_bridge.c:565 BRIDGE THREAD
> DONE [sofia/external/+16505551212 at 192.168.27.72]
> 2010-03-03 21:29:56.092461 [DEBUG] switch_ivr_bridge.c:585 Send signal
> sofia/external/+15165551212 [BREAK]
> 2010-03-03 21:29:56.092461 [DEBUG] switch_rtp.c:1626 Send middle packet for
> [1] ts=91040 dur=1760/1760/2440 seq=7493
> 2010-03-03 21:29:56.092461 [DEBUG] switch_core_session.c:638 Send signal
> sofia/external/+15165551212 [BREAK]
> 2010-03-03 21:29:56.092461 [DEBUG] switch_ivr_bridge.c:565 BRIDGE THREAD
> DONE [sofia/external/+15165551212]
> 2010-03-03 21:29:56.092461 [DEBUG] switch_ivr_bridge.c:585 Send signal
> sofia/external/+16505551212 at 192.168.27.72 [BREAK]
> 2010-03-03 21:29:56.092461 [NOTICE] switch_ivr_bridge.c:637 Hangup
> sofia/external/+15165551212 [CS_EXCHANGE_MEDIA] [NORMAL_CLEARING]
> 2010-03-03 21:29:56.092461 [DEBUG] switch_channel.c:2071 Send signal
> sofia/external/+15165551212 [KILL]
> 2010-03-03 21:29:56.092461 [DEBUG] switch_core_session.c:1018 Send signal
> sofia/external/+15165551212 [BREAK]
> 2010-03-03 21:29:56.092461 [DEBUG] switch_core_state_machine.c:351
> (sofia/external/+15165551212) State EXCHANGE_MEDIA going to sleep
> 2010-03-03 21:29:56.092461 [DEBUG] switch_core_state_machine.c:314
> (sofia/external/+15165551212) Running State Change CS_HANGUP
> 2010-03-03 21:29:56.092461 [DEBUG] switch_core_state_machine.c:499
> (sofia/external/+15165551212) State HANGUP
> 2010-03-03 21:29:56.092461 [DEBUG] mod_sofia.c:411 Channel
> sofia/external/+15165551212 hanging up, cause: NORMAL_CLEARING
> 2010-03-03 21:29:56.092461 [DEBUG] mod_sofia.c:454 Sending BYE to
> sofia/external/+15165551212
> 2010-03-03 21:29:56.092461 [DEBUG] switch_core_state_machine.c:46
> sofia/external/+15165551212 Standard HANGUP, cause: NORMAL_CLEARING
> 2010-03-03 21:29:56.092461 [DEBUG] switch_core_state_machine.c:499
> (sofia/external/+15165551212) State HANGUP going to sleep
> 2010-03-03 21:29:56.092461 [DEBUG] switch_core_state_machine.c:333
> (sofia/external/+15165551212) State Change CS_HANGUP -> CS_REPORTING
> 2010-03-03 21:29:56.092461 [DEBUG] switch_core_session.c:1018 Send signal
> sofia/external/+15165551212 [BREAK]
> 2010-03-03 21:29:56.092461 [DEBUG] switch_core_state_machine.c:314
> (sofia/external/+15165551212) Running State Change CS_REPORTING
> 2010-03-03 21:29:56.093481 [DEBUG] switch_core_state_machine.c:590
> (sofia/external/+15165551212) State REPORTING
> 2010-03-03 21:29:56.093481 [DEBUG] switch_core_state_machine.c:348
> (sofia/external/+16505551212 at 192.168.27.72) State EXECUTE going to sleep
> 2010-03-03 21:29:56.093481 [DEBUG] switch_core_state_machine.c:314
> (sofia/external/+16505551212 at 192.168.27.72) Running State Change
> CS_ROUTING
> 2010-03-03 21:29:56.093481 [DEBUG] switch_core_state_machine.c:341
> (sofia/external/+16505551212 at 192.168.27.72) State ROUTING
> 2010-03-03 21:29:56.093481 [DEBUG] mod_sofia.c:140 sofia/external/+
> 16505551212 at 192.168.27.72 SOFIA ROUTING
> 2010-03-03 21:29:56.093481 [DEBUG] switch_core_state_machine.c:77
> sofia/external/+16505551212 at 192.168.27.72 Standard ROUTING
> 2010-03-03 21:29:56.093481 [DEBUG] switch_core_state_machine.c:119
> (sofia/external/+16505551212 at 192.168.27.72) State Change CS_ROUTING ->
> CS_EXECUTE
> 2010-03-03 21:29:56.093481 [DEBUG] switch_core_session.c:1018 Send signal
> sofia/external/+16505551212 at 192.168.27.72 [BREAK]
> 2010-03-03 21:29:56.093481 [DEBUG] switch_core_state_machine.c:341
> (sofia/external/+16505551212 at 192.168.27.72) State ROUTING going to sleep
> 2010-03-03 21:29:56.093481 [DEBUG] switch_core_state_machine.c:314
> (sofia/external/+16505551212 at 192.168.27.72) Running State Change
> CS_EXECUTE
> 2010-03-03 21:29:56.093481 [DEBUG] switch_core_state_machine.c:348
> (sofia/external/+16505551212 at 192.168.27.72) State EXECUTE
> 2010-03-03 21:29:56.093481 [DEBUG] mod_sofia.c:226 sofia/external/+
> 16505551212 at 192.168.27.72 SOFIA EXECUTE
> 2010-03-03 21:29:56.093481 [DEBUG] switch_core_state_machine.c:157
> sofia/external/+16505551212 at 192.168.27.72 Standard EXECUTE
> EXECUTE sofia/external/+16505551212 at 192.168.27.72 lua(callee.lua)
> 2010-03-03 21:29:56.095544 [DEBUG] switch_core_state_machine.c:53
> sofia/external/+15165551212 Standard REPORTING, cause: NORMAL_CLEARING
> 2010-03-03 21:29:56.095544 [DEBUG] switch_core_state_machine.c:590
> (sofia/external/+15165551212) State REPORTING going to sleep
> 2010-03-03 21:29:56.095544 [DEBUG] switch_core_state_machine.c:327
> (sofia/external/+15165551212) State Change CS_REPORTING -> CS_DESTROY
> 2010-03-03 21:29:56.095544 [DEBUG] switch_core_session.c:1018 Send signal
> sofia/external/+15165551212 [BREAK]
> 2010-03-03 21:29:56.095544 [DEBUG] switch_core_session.c:1161 Session 24
> (sofia/external/+15165551212) Locked, Waiting on external entities
> 2010-03-03 21:29:56.095544 [NOTICE] switch_core_session.c:1179 Session 24
> (sofia/external/+15165551212) Ended
> 2010-03-03 21:29:56.095544 [NOTICE] switch_core_session.c:1181 Close
> Channel sofia/external/+15165551212 [CS_DESTROY]
> 2010-03-03 21:29:56.095544 [DEBUG] switch_core_state_machine.c:428
> (sofia/external/+15165551212) Running State Change CS_DESTROY
> 2010-03-03 21:29:56.095544 [DEBUG] switch_core_state_machine.c:439
> (sofia/external/+15165551212) State DESTROY
> 2010-03-03 21:29:56.095544 [DEBUG] mod_sofia.c:338
> sofia/external/+15165551212 SOFIA DESTROY
> 2010-03-03 21:29:56.095544 [DEBUG] switch_core_state_machine.c:60
> sofia/external/+15165551212 Standard DESTROY
> 2010-03-03 21:29:56.095544 [DEBUG] switch_core_state_machine.c:439
> (sofia/external/+15165551212) State DESTROY going to sleep
> 2010-03-03 21:29:56.127189 [DEBUG] switch_ivr.c:1441 (sofia/external/+
> 16505551212 at 192.168.27.72) State Change CS_EXECUTE -> CS_ROUTING
> 2010-03-03 21:29:56.127189 [DEBUG] switch_core_session.c:1018 Send signal
> sofia/external/+16505551212 at 192.168.27.72 [BREAK]
> 2010-03-03 21:29:56.127189 [DEBUG] switch_core_session.c:638 Send signal
> sofia/external/+16505551212 at 192.168.27.72 [BREAK]
> 2010-03-03 21:29:56.127189 [NOTICE] switch_ivr.c:1447 Transfer
> sofia/external/+16505551212 at 192.168.27.72 to inline[lua:caller.lua]
> 2010-03-03 21:29:56.875077 [DEBUG] switch_core_media_bug.c:360 Attaching
> BUG to sofia/external/+16505551212 at 192.168.27.72
> 2010-03-03 21:29:56.909780 [DEBUG] switch_core_media_bug.c:442 Removing BUG
> from sofia/external/+16505551212 at 192.168.27.72
> 2010-03-03 21:29:56.910802 [ERR] inline:1  Session is not active!
> 2010-03-03 21:29:56.910802 [DEBUG] switch_core_state_machine.c:348
> (sofia/external/+16505551212 at 192.168.27.72) State EXECUTE going to sleep
> 2010-03-03 21:29:56.910802 [DEBUG] switch_core_state_machine.c:314
> (sofia/external/+16505551212 at 192.168.27.72) Running State Change
> CS_ROUTING
> 2010-03-03 21:29:56.910802 [DEBUG] switch_core_state_machine.c:341
> (sofia/external/+16505551212 at 192.168.27.72) State ROUTING
> 2010-03-03 21:29:56.910802 [DEBUG] mod_sofia.c:140 sofia/external/+
> 16505551212 at 192.168.27.72 SOFIA ROUTING
> 2010-03-03 21:29:56.910802 [DEBUG] switch_core_state_machine.c:77
> sofia/external/+16505551212 at 192.168.27.72 Standard ROUTING
> 2010-03-03 21:29:56.910802 [DEBUG] switch_core_state_machine.c:119
> (sofia/external/+16505551212 at 192.168.27.72) State Change CS_ROUTING ->
> CS_EXECUTE
> 2010-03-03 21:29:56.910802 [DEBUG] switch_core_session.c:1018 Send signal
> sofia/external/+16505551212 at 192.168.27.72 [BREAK]
> 2010-03-03 21:29:56.910802 [DEBUG] switch_core_state_machine.c:341
> (sofia/external/+16505551212 at 192.168.27.72) State ROUTING going to sleep
> 2010-03-03 21:29:56.910802 [DEBUG] switch_core_state_machine.c:314
> (sofia/external/+16505551212 at 192.168.27.72) Running State Change
> CS_EXECUTE
> 2010-03-03 21:29:56.910802 [DEBUG] switch_core_state_machine.c:348
> (sofia/external/+16505551212 at 192.168.27.72) State EXECUTE
> 2010-03-03 21:29:56.910802 [DEBUG] mod_sofia.c:226 sofia/external/+
> 16505551212 at 192.168.27.72 SOFIA EXECUTE
> 2010-03-03 21:29:56.910802 [DEBUG] switch_core_state_machine.c:157
> sofia/external/+16505551212 at 192.168.27.72 Standard EXECUTE
> EXECUTE sofia/external/+16505551212 at 192.168.27.72 lua(caller.lua)
> 2010-03-03 21:29:56.911830 [NOTICE] switch_cpp.cpp:1142 ***********
> Caller.lua - Success: 53d37581-1f90-44bf-860a-addbc8430e3a ***********
> 2010-03-03 21:29:56.911830 [ERR] switch_core_session.c:357 Could not locate
> channel type 53d37581-1f90-44bf-860a-addbc8430e3a
> 2010-03-03 21:29:56.911830 [ERR] switch_ivr_originate.c:2389 Cannot create
> outgoing channel of type [53d37581-1f90-44bf-860a-addbc8430e3a] cause:
> [CHAN_NOT_IMPLEMENTED]
> 2010-03-03 21:29:56.911830 [DEBUG] switch_ivr_originate.c:3187 Originate
> Resulted in Error Cause: 66 [CHAN_NOT_IMPLEMENTED]
> 2010-03-03 21:29:56.911830 [ERR] switch_cpp.cpp:618 session is not
> initalized
> 2010-03-03 21:29:57.032095 [DEBUG] switch_ivr_play_say.c:1156 Codec
> Activated L16 at 8000hz 1 channels 20ms
>
> How can I get the callee leg to stay up? Is this not what -bleg is supposed
> to do? Am I doing something wrong here? I've tried parking both legs and
> invoking the lua on the channels but one of the channels still drops and the
> uuid is no-longer available in the event socket.
>
> Is there some other preferred way to split a call apart?
>
> Thanks.
>
> -Anders
>
>
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