[Freeswitch-users] How to keep leg A from hanging up from a bridge when Leg B hangs up (and vice versa)?

[Simon Tang]

Hello,

 

I'm using event socket outbound and have a framework that does stuff
based on the events that come back (this includes my own IVR).  What I
have now is an IVR system that allows 2 users to bridge to one another
at will, and to 'unbridge' at will by catching DTMF events.

 

I have 2 requirements:

1.       When one leg hangs up during a bridge, the other leg is
presented with the IVR

2.       After a bridge, when one leg sends a DTMF tone, both legs will
be presented with the IVR and no longer be bridged (they can bridge with
other sessions again after this point if they desire)

 

I have done multiple experiments by using netcat and 2 sessions.  Here
is what I have found:

*         The hangup_after_bridge variable does nothing for me.  I've
set it on both legs, but whenever one leg hangs up after a uuid_bridge,
the other leg will automatically hang up

 

*         I've tried setting "park_after_bridge=true" on both legs, and
this works to a certain extent.  If one leg hangs up, the other leg will
be parked, and I can present that user with my IVR.  This meets
requirement #1.  However, requirement #2 won't be met because:

 

o   If I set "park_after_bridge=true" and one leg sends a DTMF tone to
signal an unbridge, I will "unbridge" the legs by "parking" both legs
and I am able to present them both with an IVR.  If they decide to
bridge with each other again (by selecting an option in the IVR), I will
attempt to do a uuid_bridge and this will FAIL!  (both parties do not
hear each other.)  In the simplest terms, I can't do "uuid_bridge uuidA
uuidB", "park", "uuid_bridge uuidA uuidB".

 

*         With "park_after_bridge=false" (default), I can do
"uuid_bridge uuidA uuidB", "park", "uuid_bridge uuidA uuidB" with no
issues, meeting requirement #2.  However, this will not meet requirement
#1, because when one leg hangs up, it will trigger a hangup on the
other.

 

Please help.  How can I meet both of my requirements?

 

Thanks.

 

Simon Tang

Lead, Server Team
 

Suite 706, 1155 Robson Street

Vancouver, B.C. 

Canada V6E 1B5

T: +1.604.408.2228  Ext. 116

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E: simon at airg.com <mailto:simon at airg.com>  

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