Ok... I have to give a shout out to the Obi support team! Once I wised up and followed the process by submitting a support request, they made it happen! They updated my Obi100 with a newer firmware and viola, it works!!!
Because CallCentric has not setup the proper infrastructure to protect themselves from a DDoS attack, they made some major changes. Once they made some of their "proxy" modifications it crippled the Obi. Again, props to Obi! As a side note, if you expect other SIP gateways (Cisco SPA112) to perform the same as Obi, learn from me, they don't. The Cisco SPA112 does NOT allow you to provision two SIP providers on one line. Major drawback. They do already have the functions to deal with CallCentrics' multiple proxy and DNS environment, (Wow, an Arbor deployment would've been simpler) but there are some trade off's!
Thanks Obi for making your product even stronger and making me a believer!