[Freeswitch-users] Stuck on my first attempt at dialplanning

18 Aug 2009

      This is my first attempt at setting up the dial plan to do anything more 
than the basic default stuff.  What I am trying to do is set up some 
conferencing as follows

1. A calls B
2. B puts both A and B into a conference
3. A or B calls out from the conference (via the * set in caller 
controls) to C
4a If C hangs up or rejects the call, A/B should go back to the conference
4b If A/B types *1 before the call is answered he should go back to the 
conference
4c If A/B types *1 after the call is answered both A/B and C should go 
back into the conference.

It nearly all works except

i) A seemingly can't use the * caller control, where as B can.  The 
other caller control I set up (mute) seems to work

ii) If C rejects the call before answering, B gets hung_up (because of 
i) I can only test with B)

iii) When B gets back to the conference, the * caller control doesn't 
work (although the mute does)

Can someone tell me where I am going wrong.

----------------------

Here is the dialplan snippet that I use to handle the dialout from the 
conference (pressing the * in step 3)

     <!-- Conference Callout To Another Extension -->
     <extension name="cco">
       <condition field="destination_number" expression="^cco$">
         <action application="read" data="3 3 
'tone_stream://%(10000,0,350,440)' digits 5000 #"/>
         <action application="bind_meta_app" data="2 a s 
execute_extension::conf_transfer XML features" />
         <action application="set" data="hangup_after_bridge=false" />
         <action application="bridge" 
data="user/${digits}@${domain_name}" />
         <action application="info" />
          <action application="conference" 
data="${conference_name}@default" />
       </condition>
     </extension>

     <extension name="conf_transfer">
       <condition field="destination_number" expression="^conf_transfer$" >
         <action application="answer" />
         <action application="transfer" data="-both ${conference_name} 
XML default" />
       </condition>
     </extension>

And here is the bit in my default XML where I define the conference

     <extension name="nb_conferences">
       <condition field="destination_number" 
expression="^(2(0[1-9]|[1-9][0-9]))$">
	<action application="answer"/>
	<action application="conference" data="$1@default"/>
       </condition>
     </extension>

The call out to the conference from the original call is done via 
changing the bind meta app in the default dialplan for local extension

	<action application="bind_meta_app" data="2 ab s execute_extension::cf 
XML features"/>

and this extension in features

     <!-- Used to transfer both legs into a conference -->
     <extension name="cf">
       <condition field="destination_number" expression="^cf$">
	<action application="answer"/>
	<action application="transfer" data="-both 2${dialed_extension:1} XML 
default"/>
       </condition>
     </extension>

I can get as far as talking to C after dialing him, but if he doesn't 
answer, or rejects the call I get lost in space somewhere.  If I type *1 
during the call with C I get back to the conference, and C appears to be 
  in the conference (hear him speak) but he gets music on hold.

What am I doing wrong?

-- 
Alan Chandler
http://www.chandlerfamily.org.uk