Please point, that EM has a simple Asterisk inside it to make an SBC.
Also, make sure, that you have your provider IP address in SIP server list.
Pointing on LAN side of your EM is useful, when there is no registrations, otherwise point at your provider directly from FS.
To make a full-hiding-topology scenario, please follow scenario C in your document.

2015-07-09 3:34 GMT+03:00 Joli Martinez <mrjoli021@gmail.com>:
Hello,

I have an Edgemarc as an SBC and behind it is a Freeswitch pbx.  I have configured the edgemarc as scenario 1 on the link below.  So only does topology hiding but Freeswitch does the registration.  On the sip-profile external I have my xml file which points to the LAN side of the Edgemarc.

I am unable to register to the provider I get 503 service unvail.

https://edgewaternetworks.com/wp-content/uploads/2014/07/Edgewater_ConfigureEdgeMarcForSIPTrunking.pdf

Please help.


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--
Best regards,
Igor