[LINK] FTTN architecture

[Andy Farkas]

> My understanding is that an ISP must have a connection to every POI
> which services an area containing their customers.

Yes. There are 121 POIs which everyone agrees is a huge mistake, everyone
except the ACCC which enforced it, or certain major telcos that already
own lots of fibre back haul between places.

> So someone with existing ADSL & VoIP services doesn't need to change
> anything much when they migrate to an FTTN-based NBN service except that
> they'd have to configure a properly allocated VoIP telephone number for
> communication with other telephone users on the national network, and
> perhaps some other minor configuration changes.

You will have to ditch your existing ADSL modem and buy a new VDSL
capable modem that is approved by nbn(tm). You will have to configure
your existing VoIP settings into it. Note: a new VDSL modem is *not*
50 bucks like Lord Lightbulb said.

> But what do traditional POTS users do when the local NBN network is
> fully cutover

Everyone has to connect to the nbn(tm). Your POTS line will be switched
off. No phone, no ADSL.

> Will they each be issued with an NTU

Haha. No, you will *have* to connect with a RSP even if you don't want
Internet. You will have to get a VDSL capable VoIP modem.

> do the kerbside nodes contain analogue signal converters?

Nope.

> An ISP which doesn't connect to all 121 or so POIs must have a
> connection to a service provider which can route voice calls to / from
> users in those CSAs.  So how does an ISP decide how to route a call when
> the called number may be with them, with a user on a different ISP in
> the same CSA, or with a user in a different CSA to which the ISP has
> direct access, or another CSA altogether?

You're confused. VoIP - Voice over Internet Protocol - uses a connection
over the Internet to connect to your VoIP provider. Your call is switched
by your VoIP provider to the VoIP provider of the person you are calling.
I could try and explain it a bit better but I'm out of time...

-andyf



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