On Jul 15, 5:11 am, "Rod Speed" <rod.speed....@gmail.com> wrote:
> mrripcurl <mrripc...@yahoo.com.au> wrote:
> > On Jul 14, 10:45 am, Simon Templar <use...@vk3xem.net> wrote:
> >> mrripcurl wrote:
> >>> I have always received international phone calls as Private Number
> >>> so presumed that Caller ID could not cross international boundaries.
> >>> Monday I got a call from NZ with the number clearly displayed! I'm
> >>> on Voda and the NZ number was a Telecom landline. Is this new? Is
> >>> it a fluke? Is it widespread? I emailed a friend in Europe who
> >>> promptly rang but his number didn't come thru, so is it restricted
> >>> to just certain telcos?
>
> >> Probably (as I've always suspected) just a matter of both and maybe
> >> any intermediate networks having it enabled. Most of them are just
> >> too lazy to enable such options.
>
> >> --
> >> The views I present are that of my own and NOT of any organisation I
> >> may belong to.
>
> >> 73 de Simon, VK3XEM.
> >> <http://web.acma.gov.au/pls/radcom/client_search.client_lookup?pCLIENT...>
>
> > Yes, you are probably right. Just wonder why Telecom NZ turned it on.
>
> Likely because it was just as easy to turn it on as to turn it off.
>
>
>
> > Since last night I've got friends in Sth Africa, England, Dubai and
> > Shanghai to call me and all came thru Private Number. That same
> > NZ number called five days before and it was Private then (and no
> > they don't have their number suppressed), but revealed this week!- Hide quoted text -
>
> - Show quoted text -- Hide quoted text -
>
> - Show quoted text -

There is much behind the scenes work necessary to allow International
CLI into a domestic network.
Most of the PSTN in incapable of correctly handling Int CLI, and so
the type of destination has to be considered if the CLI is in Int
format. If the destination is not capable, then the CLI must be
suppressed. Diverted calls, where the original CLI is Int format is
another headache.
It sounds pretty easy, but it's been a nightmare to do the little bit
we've got.
Consider, how would you display an international CLI on the your home
phone, in a format capable of being re-dialled, hmm? There's no '+'
key on my home phone, and PSTN switches still accept the old loop
disconnect decadic dialling too. No '+' there either.
If you get CLI, enjoy it, but don't bag the fact that you don't ALWAYS
get it.
The easiest way to make it universally available would be to build an
entire new network, worldwide, and that ain't gonna happen anytime
soon.