That probably depends on your country. Here nothing less than 100 Mbps is acceptable :-). Just pointing out that is not actually possible without rebuilding.
To his original query I would suggest simply using CPEs with VoIP ports and skip analog voice. Regards, Baldur On Thu, May 7, 2020 at 10:03 PM Mel Beckman <m...@beckman.org> wrote: > Baldur, > > According to Nick Edwards, the OP, the main application is voice, which > most any DSLAM will handle easily, and solve his IP PBX line consolidation > problem. Instead of physical lines into the PBX, he can use the integrated > DSLAM SIP calling capability as the IP PBX interface. Given that only some > of the 1700 lines will be in use simultaneously, that amounts to very > little bandwidth. > > Data capacity of 10 or 20 Mbps in this environment would be pure gravy, > and 100 Mbps is almost certainly not expected, or needed, for "worker > huts". I'm assuming the workers are not all tele-surgeons .🙂 > > -mel > ------------------------------ > *From:* NANOG <nanog-boun...@nanog.org> on behalf of Baldur Norddahl < > baldur.nordd...@gmail.com> > *Sent:* Thursday, May 7, 2020 12:55 PM > *To:* nanog@nanog.org <nanog@nanog.org> > *Subject:* Re: alternative to voip gateways > > > > On Thu, May 7, 2020 at 9:05 PM Brandon Martin <lists.na...@monmotha.net> > wrote: > > On 5/7/20 12:03 PM, Mel Beckman wrote: > > In the OP’s case however, the copper plant is private, and wholly owned > and already in operation. So surely in that situation fiber would be much > more expensive to dig and trench. > > Indeed, I was responding to Ohta's comments regarding copper vs. fiber. > In this case, using DSL over the existing plant seems like a slam dunk > unless very high speeds are needed or the plant is in very poor condition. > Modern VDSL/2 DSLAMs are relatively inexpensive and will push 100Mbps over > surprising distances with essentially seamless fallback to ADSL2+ at > ~24Mbps for long-reach situations. > -- > > > Actually we are told the distances are between 300 meters and 1600 meters. > 1700 loops all from a single point. That is going to suck. There will be no > vectoring and VDSL speeds starts to drop fast after 500 meters. There is > going to be a ton of crosstalk. > > If you want to deliver 100 Mbps you will need to rebuild the copper plant > such that you isolate bundles of 192 loops in nearby cabinets. You need to > build fiber and power out there. You need to invest in multiple decentral > DSLAMs. > > Regards, > > Baldur > > >
