[Freeswitch-users] Bridge incoming call to external number

[Dave R. Kompel]

This is not a FreeSWITCH issue. A lot of FXO terminal adaptors do not detect CPC right. In some cases they don't even do it on outgoing calls. Make sure your device is set to detect CPC (Calling Party Control) signalls form the phone line. Make sure the device you are using cal do that too.  
   
--Dave
      _____  

  From: ocset [mailto:ocset at the800group.com]
To: FreeSWITCH Users Help [mailto:freeswitch-users at lists.freeswitch.org]
Sent: Fri, 25 May 2012 00:41:54 -0700
Subject: [Freeswitch-users] Bridge incoming call to external number

Hi

Setup
Windows 7
Freeswitch
GXW4104 FXO
2 x POTS lines

I have setup Freeswitch to bridge an incoming call to an external mobile 
phone using a GXW4104 FXO device. The bridge works great but I am having 
a real headache with the connection not being disconnected when the 
users hang up.

There is no disconnection issue when a call comes in on either line and 
is connected to an internal extension (like ext 1001). It is when one 
line is bride to the second that the issue occurs.

<extension name="pots_0155555555">
<condition field="destination_number" expression="^(0155555555)$">
<action application="set" data="hangup_after_bridge=true"/>
<action application="set" data="continue_on_fail=true"/>
<action application="set" data="call_timeout=30"/>
<action application="bridge" 
data="sofia/internal/0766666666 at 192.168.1.160:5060
<action application="answer"/>
<action application="sleep" data="1000"/>
<action application="voicemail" data="default ${domain} 1001"/>
</condition>
</extension>

1. Would this be a limitation of the GXW4104
2. Is it possible to write a "lua" script that could manage the 
disconnect some how?
3. If I enable "Polarity Reversal" under "FXO Termination" then the 
disconnect works but I have issues with sound and the system not 
registering when someone picks up.

Please help me fix/diagnose this problem.

Thanks
O

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