[kwlug-disc] VoIP questions

Adam Glauser adamglauser at gmail.com
Tue Jan 5 13:07:11 EST 2010


Lori Paniak wrote:
> Maybe I can answer that...
> 
> The Internet Telephone Service Provider (ITSP) gives you a bridge from
> the POTS to VOIP through a Direct Inward Dialing (DID) number (telephone
> number!).  You don't really buy a phone number - just rent it.
> 
> A non-toll-free number from a typical ITSP (unlimitel, les.net,
> link2voip) costs $2.50-3.50 with ~2c/min for all calls.  Toll-free
> numbers are also available at slightly higher cost.

Thanks Lori, that's exactly what I was looking for.

We're looking into VoIP choice for a small office.  If we decide we 
don't need an auto-attendant, extensions and all that hoopla, would it 
be possible to each have a DID from an ITSP?  That is, can you have 
multiple SIP devices (softphones, probably) behind NAT, each of which 
have their own DID?



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