thanks for the replies. I spoke with the vendor and they are using broadworks, It seemed to be the issue with broadworks when getting the headers from SNOM. the SBC being a B2BUA passes the headers for the most part so they fixed it.
Now on to the next issue with the message waiting indicator not updating when new voicemails are available or when checked the indicator does not show it gone. It updates when I close the bria softphone and start it up again, just does not update while it is loaded.
Frank