porting number after disconnecting it

[patoka]

Cable VoIP is different in that they don't port unless you live in the same ratecenter where traditional VoIP your location doesn't matter.

Is that a federal or state law?

[usa2k]

Is that a federal or state law?

It has to do mostly with their Rate Centers and E911. VoIP has nomadic E911. Cable and the old ATT Call Vantage always routed E911 through their Rate Center switch as I understand it. That meant that they could not use aother Rate Center they have presence in, if the number did not belong to that Rate Center.

[fisamo]

FWIW, ATTCV's E911 was also (at least somewhat) nomadic. Their setup didn't have a nationwide footprint, though.