On 8/9/06, <b class="gmail_sendername">Bruce Reeves</b> <<a href="mailto:asterisk@nortex-networks.com">asterisk@nortex-networks.com</a>> wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>Trixter,<br><br>Can you share with me how you looked that information up? Here is were I'm getting lost I guess, if I bought a PRI from SBC and it came with 99 DID numbers, I could resale those DIDs to my clients, but I would have to have a a Asterisk server connected to the PRI and a high quality Internet connection between clients and my server. But that does not seem to make any sense to me when I compare that to what ITSP's are doing, they don't have servers or switches in all these locations do they?
</div></blockquote><div><br><br>My guess, and this is just a guess, is that "most" ITSPs with large coverage footprints obtain their DIDs from a larger company like Level(3). Level(3), being a CLEC in many areas, already has a ton of DIDs throughout the country, and has the infrastructure to backhaul these calls most anywhere, perhaps over IP or perhaps over PRI.
<br><br>I suspect that the most common way to gain access to these is to obtain IP connectivity directly from Level(3), and they will route the calls that come into the DIDs to your server over their own IP network, which presumably is either grossly overprovisioned or uses QoS to ensure call quality. That way, the calls never hit the public Internet, but you could still fit more than one call in a DS-0's worth of throughput if you use a low-bitrate codec.
<br></div><br>Alternatively, perhaps one can obtain PRIs from Level(3), and L3 will send the calls received at your DIDs through the PRI(s) at your location. <br><br>If anyone can confirm or deny that this is how it works; I'd be interested to hear it :).
<br><br>-Rusty<br><br><br><br></div>