Configuring UC500 FXS port for fax, SIP trunk to PSTN

A friend is trying to bring up a fax machine on the FXS port of a Cisco UC500.  From the CLI we followed the method below using stcapp and making the fxs port an sccp phone.  The fax machine would answer but faxing would fail.  So he tried to use the GUI to configure the FXS ports.  Rather than ephones and stcapp it just appeared to make use of dial peers.  The fax machine appears to answer internal calls but not from outside.  Can someone please point me to a foolproof config for taking a call from a SIP trunk and sending that on to an FXS port with a fax connected to it?  Is stcapp or dial-peer the better way to go?  Thanks.

http://uc500.com/es/using-stcapp-make-fxs-port-sccp-phone
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amigan_99Network EngineerAsked:
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EyeNoVoIPConnect With a Mentor Commented:
the fax rate is set to 7200 on dial-peer 1041 with  description **CCA*North American-10-Digit*10-Digit Local**.  change the command to fax rate disable.  I also see the voice class codec is enabled globally but it is not applied to any dial-peers.  Please add in voice-class codec 1 to this dial-peer as well (make sure you have the - (hyphen) when typing in voice-class under the dial-peer.  Please also note that voice class in global config does not have the - (hyphen).  If you have a Super G3 fax mode turned on your fax machine you may have to turn that off.  Let me know how it goes.
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mark_06Commented:
Can you please post the  running-config?
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amigan_99Network EngineerAuthor Commented:
I am attaching a cleaned version of the config.  Sorry I've been out of town for a few days - hence the delay.

The situation is that inbound faxing is working.  Outbound faxes are not.  Dialing occurs but the fax is not able to get passed. CleanConfig032811.txt
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amigan_99Network EngineerAuthor Commented:
TY
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