Interesting. You might want to consider paying some expert for consulting ?
Mitul On Jun 22, 2013 7:21 PM, "Nick Khamis" <[email protected]> wrote: > Hello Everyone, > > We are currently having talks with various service providers, and > trying to determine what the best way is to interconnect in order to > have access to the PSTN network. As you know there are two ways of > doing this: > > Traditional PRI: Have trunks grouped into a transport layer such as > OC3/12. With DIDs attached to the group. As you many know, this > approach would also require a POP near the CO of the exchange we want > to service etc.. We could also have the service provider backhaul some > of the NXX in areas we do not have a POP, to a location near by. > > SIP Trunking: SIP traffic coming through the end of transport layer > such as OC3 or ethernet connection directly connected to the service > provider, with DID that can come from anywhere. No need for a POP in > Chicago, for example, when we are located in Kansas. > > The benefits of one over the other are known, and not the topic of > this message. What we are trying to determine are: > > When talking market price, a "virtual PRI/SIP Trunk" interconnect > costs about 500-550 per 24 channel virtual pri. This compared to a > true "ISDN/PRI" which can costs between "200-500" dollars depending > who you talk to. We also have to take into consideration the hardware > needed for either setup i.e.: > > * Option 1: SIP Proxy > * Option 2: media gatweays, multiplexers, media server.... > > Even though it was natural to talk about "pricing", this is still not > what we are interested in knowing. What we are interested in finding > out is: > > * How are service providers that offer "virtual pris" interconnected > with their suppliers? I would imagine that some (non-CLECS), are > renting a connection from the LECs, and grouping PRI/ISDN trunks > (option 2). And others (CLECS), have a A-Link/ISUP trunk interconnect > to the CO. > - Which brings up a second question. How does a PRI trunk group > differ from an ISUP > trunk. I don't know much about and ISUP trunks and would *really* > appreciate having > someone educate us on (i) the concept, (ii) what type of equipment > would be needed, > (iii) how it differs from ISDN trunk groups. (iv) is it only > available for LECS > > I do have more questions, however for the sake of brevity will stop > right here. And before anyone asks the "it depends what you want to > do", I will mention that we are trying to establish an interconnection > that will sustain 2016 channels or 84 T1s, and 5000 DIDs. We are not > trying to become a CLEC however, still feel that option 2 would be the > better choice for reasons covered here, and some that are left > implicit (i.e, quality, reliability of managing our own > networks......). > > Your insights are greatly appreciated! > > Nick. > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
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