Ooma behind router configuration

[carbonfiberhoods.com]

I doubt this is related, but I have a lot of trouble calling within california, that is also where I am located.

When I try to call places using google voice with my ooma many times I will get disconnected in California. We sell seibon carbon fiber hoods here in california so it is essential that I can talk to my customers.

My ooma is behind my firewall with the proper ports forwarded.