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Ultimate Geek
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# 208843 1-Mar-2017 19:50
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I changed to Wireless Broadband recently.


Husband used to work for NZPost/Telecom back in the day. He installed the first NEAX stuff then left.




he says, why are we not paying Chorus now?(Or why isn't spark) As we are not connected by fibre or copper, but he says the cellphone towers must still connect to the exchanges and use the switching equipment.




Whether we personally have a modem plugged into a cable or not.




I can't tell him exactly how it all joins up now, I know there are cabinets more than exchanges now. Chorus owns the lines and Spark, Vodafone etc are retailers.




But specifically, how it joins up, who does what where, with the actual new NEAX type stuff, or whatever is used now, I don't know. Not my field.


So anyone that can do a Telecommunications Network 101 that I can show him?


He thinks they all still bumble about in the little exchanges around the place doing the sort of thing (except digitally now) that they used to.


I said they don't. They only go there if there is a fault or plugging someone in, and mainly copper at that.


He said where do they run it from then, and who does? Chorus or the various ISPs/ph cos?



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3328 posts

Uber Geek
+1 received by user: 696


  # 1728562 1-Mar-2017 22:37
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Chorus / Spark / NEAX is just one network in NZ.


Other companies run their own networks and peer with each other at various peering points around the country.


For example Spark Cellular may rent cabinet space inside a chorus exchange and peer with the NEAX system in said exchange, and will only hand over calls that are required to be handed over. If your calling from spark to spark and it doesnt need to traverse a landline, it doesnt need to connect to the NEAX system at all.


Some have their own digital to analog converters in the exchange and your copper pair is connected to the ISPs own equipment (unbundled) and they emulate an analog line which sounds and behaves almost exactly like the NEAX.


Edit: To tell if you are connected to an NEAX, you can dial 1956 and if it reads back your number, you are connected to the NEAX, otherwise you are on another network.



Ray Taylor
Taylor Broadband (rural hawkes bay)

There is no place like localhost
For my general guide to extending your wireless network Click Here

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