[oclug] POTS -> SIP providers in Canada?

[Ross Jordan]

It would seem miden, on Mon, Apr 25, 2005 at 11:40:15PM -0400, wrote:
> Hate to be a pest(1). I can't seem to get a direct answer to this but
> I'm trying one last time:
> 
> If a business is using this service, can a customer determine if a call
> is being forwarded to, or coming from, a location other than the
> location listed by the business?

Not usually. In some cases, you may be able to do a lookup of the phone 
number block number and determine the owner is a VOIP provider.
Also, some of the callerID data may contain VOIP identifying information.

-Ross