[Freeswitch-users] conference voice path issue

[jonathan augenstine]

I am working through a conference module problem I am having.  I have a
simple dialplan implementation that answers an incoming call, plays a
prompt, and then connects the call to a conference.  Initially, I would dial
in on two clients (one PSTN/SIP gateway and the other a SIP client on my
laptop).  The freeswitch console messages indicate the calls would connect
to the conference but I heard no voice path.  I have been working on it this
morning and simplified my dialplan to the following.  I have not modified
the conference.conf.xml and I am using the default values.  What I am
experiencing now is a tremendous amount of echo.  Any pointers on what the
issue might be?

Jonathan

Here is my dialplan:

      <action application="answer"/>
      <action application="sleep" data="1000"/>
      <action application="playback"
data="/usr/local/freeswitch/sounds/PlumbleIntro.wav"/>

      <action application="conference" data="airespring"/>


Here is the freeswitch output:
call number 1:
2007-12-10 11:40:38 [NOTICE] switch_core_state_machine.c:135
switch_core_standard_on_execute() Execute conference(airespring)
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4439 conf_default_controls()
Installing default caller control action 'mute' bound to '0'.
2007-12-10 11:40:38 [DEBUG] switch_ivr.c:1095
switch_ivr_digit_stream_parser_set_event() max len 1
2007-12-10 11:40:38 [DEBUG] switch_ivr.c:1099
switch_ivr_digit_stream_parser_set_event() min len 1
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4439 conf_default_controls()
Installing default caller control action 'deaf mute' bound to '*'.
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4439 conf_default_controls()
Installing default caller control action 'energy up' bound to '9'.
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4439 conf_default_controls()
Installing default caller control action 'energy equ' bound to '8'.
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4439 conf_default_controls()
Installing default caller control action 'energy dn' bound to '7'.
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4439 conf_default_controls()
Installing default caller control action 'vol talk up' bound to '3'.
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4439 conf_default_controls()
Installing default caller control action 'vol talk zero' bound to '2'.
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4439 conf_default_controls()
Installing default caller control action 'vol talk dn' bound to '1'.
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4439 conf_default_controls()
Installing default caller control action 'vol listen up' bound to '6'.
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4439 conf_default_controls()
Installing default caller control action 'vol listen zero' bound to '5'.
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4439 conf_default_controls()
Installing default caller control action 'vol listen dn' bound to '4'.
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4439 conf_default_controls()
Installing default caller control action 'hangup' bound to '#'.
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4175 conference_function() Raw
Codec Activation Success L16 at 8000hz 1 channel 20ms
2007-12-10 11:40:38 [DEBUG] mod_conference.c:4214 conference_function() Raw
Codec Activation Success L16 at 8000hz 1 channel 20ms
2007-12-10 11:40:38 [DEBUG] mod_sofia.c:810 sofia_receive_message()
De-activate timed RTP!
2007-12-10 11:40:38 [DEBUG] switch_core_session.c:339
switch_core_session_receive_message() Kill
sofia/default/17476338055 at proxy01.sipphone.com:5060 [BREAK]
2007-12-10 11:40:38 [DEBUG] mod_conference.c:1531 conference_loop_output()
setup timer soft success interval: 20  samples: 160
2007-12-10 11:40:38 [DEBUG] mod_conference.c:724 conference_thread_run()
setup timer success interval: 20  samples: 160
2007-12-10 11:40:38 [DEBUG] switch_core_io.c:292
switch_core_session_read_frame() Engaging Read Buffer at 320 bytes

call number 2:
2007-12-10 11:44:00 [NOTICE] switch_core_state_machine.c:135
switch_core_standard_on_execute() Execute conference(airespring)
2007-12-10 11:44:00 [DEBUG] mod_conference.c:4175 conference_function() Raw
Codec Activation Success L16 at 8000hz 1 channel 20ms
2007-12-10 11:44:00 [DEBUG] mod_conference.c:4214 conference_function() Raw
Codec Activation Success L16 at 8000hz 1 channel 20ms
2007-12-10 11:44:00 [DEBUG] mod_sofia.c:810 sofia_receive_message()
De-activate timed RTP!
2007-12-10 11:44:00 [DEBUG] switch_core_session.c:339
switch_core_session_receive_message() Kill
sofia/default/+16266880158 at 72.37.161.251:5060 [BREAK]
2007-12-10 11:44:00 [DEBUG] mod_conference.c:1531 conference_loop_output()
setup timer soft success interval: 20  samples: 160
2007-12-10 11:44:00 [DEBUG] switch_core_io.c:292
switch_core_session_read_frame() Engaging Read Buffer at 320 bytes
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