asterisk: forward disconnect and Cox

[Austin Godber]

JD wrote:
> As far as ip phones...polycom, aastra, snom are good; grandstream 2000 is ok; stay away from grandstream budget phones.

I have a grandstream 2000 that I use with broadvoice.  Actually, it's 
misconfigured somehow so calls will ring or dial out but no one can ever 
hear me.  I suspect I could somehow remedy it, but its funnier broken.

Austin