I have several SBX's currently installed sitting behind Edgemarc routers. They are being fed SIP trunks from Bandwidth.com and are all working great in/out bound calling for months now.

Problem: I am trying to do the same thing but with a differnt ISP.

I can make inbound calls all day long, but outbound not so much..

I did try isolating my SBX voip card, my laptop and the router port on a hub and running wireshark. On inbound calls I saw the invite to the end... but on an outbound call, Nothing...

Does this sound like hardware or SBX config.
Now remember, I've already setup several of these to do the same thing... Could it be a authorization with the ISP??
Anyone Help??


The Tech of Southwest Michigan
Stevensville, MI
269.277.8103

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