[Freeswitch-users] some outbound calls failing

[elijah]

I have put together a dialer (of sorts) that is failing a fraction of the
time. First, I instantiate a call leg from FreeSwitch to an agent (an
employee in my facility with a softclient registered to FreeSwitch). Upon
answering this call I have FreeSwitch bridge this leg to an outbound leg
destined to a customer (via our carrier). The agent listens as this external
number is dialed then is prepared to speak with that person. So all is well
except a fraction of these calls fail at the step where FreeSwitch calls the
agent. There seems to be a 'hangup' event received from the client at the
moment this leg is answered. This happens maybe 1/3 of the time.

here's my steps

1. call a Lua script via ESL

2. Lua script generates a call leg to agent:
                local session = freeswitch.Session("user/" .. agentExt .. "@
stuff.com")
                session:sleep(1000)
                if session:ready() then
                        session:execute("pre_answer")
                        session:execute("ring_ready")
                        session:execute("sleep", "1000")
                        session:setVariable("outbound_callee_number",
outboundCalleeNumber)
                        session:setVariable("outbound_caller_number",
outboundCallerNumber)
                        session:setVariable("outbound_caller_name",
outboundCallerName)
                        session:transfer("sales_outbound", "XML", "telifi")

******** fails here ~30% of the time - phone rings on the agent's desk,
she answers and the call immediately ends ********

3. this leg is transferred to an XML dialplan that handles bridging to a
customer's phone number:
    <extension name="sales_outbound">
      <condition field="destination_number" expression="^sales_outbound$">
        <action application="log" data="INFO connected to agent, now dialing
out..."/>
        <action application="sleep" data="1000"/>
        <action application="playback"
data="ivr/8000/ivr-call_being_transferred.wav"/>-->
        <action application="set" data="continue_on_fail=true"/>
        <action application="set" data="hangup_after_bridge=true"/>
        <action application="set" data="ringback=${us-ring}"/>
        <action application="set" data="call_timeout=30"/>
        <action application="set"
data="effective_caller_id_number=${outbound_caller_number}"/>
        <action application="set"
data="effective_caller_id_name=${outbound_caller_name}"/>
        <action application="sleep" data="1000"/>
        <action application="bridge"
data="sofia/gateway/mycarrier/${outbound_callee_number}"/>
      </condition>
    </extension>

I appreciate any insight or suggestions you could provide.
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