ISDN with ADSL?

Before I make an ass of myself with a BT salesman who is trying to
"upgrade" our analogue phone line to ISDN2e, am I right in thinking that
ADSL will not work over an ISDN connection? (Our analogue phoneline line
currently has an ADSL connection running over it.) The literature we've
received doesn't mention it at all, but BT's website seems to suggest that
you have to downgrade ISDN to analogue to install ADSL, and I've always
believed that to be the case.

Is there any advantage from a voice calls/switchboard point of view to
converting a two-line analogue phone number to bonded ISDN2e? I assumed at
first that we might be able to have more than two simultaneous phone calls
going on it but that doesn't seem to be the case, so I'm wondering why we
are getting ISDN pushed at us by BT when AFAICT all we needed was a new
analogue switch (the old one having gone on the blink so it wouldn't
complete incoming calls).

On Fri, 28 Sep 2007 19:35:44 UTC, Marty Fremen <(E-Mail Removed)>
wrote:

> Before I make an ass of myself with a BT salesman who is trying to
> "upgrade" our analogue phone line to ISDN2e, am I right in thinking that
> ADSL will not work over an ISDN connection? (Our analogue phoneline line
> currently has an ADSL connection running over it.) The literature we've
> received doesn't mention it at all, but BT's website seems to suggest that
> you have to downgrade ISDN to analogue to install ADSL, and I've always
> believed that to be the case.

That is correct. Different in other countries, and no doubt one or two
will rant about that and BT!

I have ISDN2e for actual phone, and a POTS line for ADSL.

> Is there any advantage from a voice calls/switchboard point of view to
> converting a two-line analogue phone number to bonded ISDN2e? I assumed at
> first that we might be able to have more than two simultaneous phone calls
> going on it but that doesn't seem to be the case, so I'm wondering why we
> are getting ISDN pushed at us by BT when AFAICT all we needed was a new
> analogue switch (the old one having gone on the blink so it wouldn't
> complete incoming calls).

ISDN gives you lots of control options, I guess. For example, multiple
numbers. Incoming call on one number uses first channel, and incoming
call on another number uses second channel. Numbers are not tied to
channels. There are some nice little ISDN PBXes around. And you don't
have to stop at two numbers.

--
[ 7'ism - a condition by which the sufferer experiences an inability
to give concise answers, express reasoned argument or opinion.
Usually accompanied by silly noises and gestures - incurable, early
euthanasia recommended. ]

Marty Fremen wrote:

> Before I make an ass of myself with a BT salesman who is trying to
> "upgrade" our analogue phone line to ISDN2e

What on earth for ?

> am I right in thinking that ADSL will not work over an ISDN connection?

Yes.

Graham

"Eeyore" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
>
>
> Marty Fremen wrote:
>
>> Before I make an ass of myself with a BT salesman who is trying to
>> "upgrade" our analogue phone line to ISDN2e
>
> What on earth for ?
>
>> am I right in thinking that ADSL will not work over an ISDN connection?
>
> Yes.
>
> Graham

Actually no.
ADSL over an ISDN line is perfectly normal in Germany.
The flavour of ADSL is Annex B, and is not avalable in
the UK.

--

Graham.
%Profound_observation%

Marty Fremen expressed precisely :
> Before I make an ass of myself with a BT salesman who is trying to
> "upgrade" our analogue phone line to ISDN2e, am I right in thinking that
> ADSL will not work over an ISDN connection? (Our analogue phoneline line
> currently has an ADSL connection running over it.) The literature we've
> received doesn't mention it at all, but BT's website seems to suggest that
> you have to downgrade ISDN to analogue to install ADSL, and I've always
> believed that to be the case.

Correctlt, in the UK

> Is there any advantage from a voice calls/switchboard point of view to
> converting a two-line analogue phone number to bonded ISDN2e?

If this is what you have at the moment, you must also have a single
line which is carrying your ADSL.

> I assumed at
> first that we might be able to have more than two simultaneous phone calls
> going on it but that doesn't seem to be the case,

Eh? this should be the case with your existing two-line analogue number
and it would certainly be possible and normal with ISN2e.

> so I'm wondering why we
> are getting ISDN pushed at us by BT when AFAICT all we needed was a new
> analogue switch (the old one having gone on the blink so it wouldn't
> complete incoming calls).

That's BT for you. Rentals are dearer, generally & the PBXs are a bit
dearer too.

PS. 3 line, 8 extension Analogue Panasonic PBX circa £300

(supersedes <(E-Mail Removed)>)

Marty Fremen expressed precisely :
> Before I make an ass of myself with a BT salesman who is trying to
> "upgrade" our analogue phone line to ISDN2e, am I right in thinking that
> ADSL will not work over an ISDN connection? (Our analogue phoneline line
> currently has an ADSL connection running over it.) The literature we've
> received doesn't mention it at all, but BT's website seems to suggest that
> you have to downgrade ISDN to analogue to install ADSL, and I've always
> believed that to be the case.

Correct, in the UK

> Is there any advantage from a voice calls/switchboard point of view to
> converting a two-line analogue phone number to bonded ISDN2e?

If this is what you have at the moment, you must also have a single
line which is carrying your ADSL.

> I assumed at first that we might be able to have more than two simultaneous
> phone calls going on it but that doesn't seem to be the case,

Eh? this should be the case with your existing two-line analogue number
and it would certainly be possible and normal with ISN2e.

> so I'm wondering why we are getting ISDN pushed at us by BT when AFAICT all
> we needed was a new analogue switch (the old one having gone on the blink
> so it wouldn't complete incoming calls).

That's BT for you. Rentals are dearer, generally & the PBXs are a bit
dearer too.

PS. 3 line, 8 extension Analogue Panasonic PBX circa £300

"Marty Fremen" <(E-Mail Removed)> wrote in message
news:Xns99B9D23462D18C9A6@213.239.142.64...
> Before I make an ass of myself with a BT salesman who is trying to
> "upgrade" our analogue phone line to ISDN2e, am I right in thinking that
> ADSL will not work over an ISDN connection? (Our analogue phoneline line
> currently has an ADSL connection running over it.) The literature we've
> received doesn't mention it at all, but BT's website seems to suggest that
> you have to downgrade ISDN to analogue to install ADSL, and I've always
> believed that to be the case.
>
> Is there any advantage from a voice calls/switchboard point of view to
> converting a two-line analogue phone number to bonded ISDN2e? I assumed at
> first that we might be able to have more than two simultaneous phone calls
> going on it but that doesn't seem to be the case, so I'm wondering why we
> are getting ISDN pushed at us by BT when AFAICT all we needed was a new
> analogue switch (the old one having gone on the blink so it wouldn't
> complete incoming calls).

Bonding ISDN means using the two 64kbs bearer channels together to
form a single 128kbs data-link. You wouldn't normally bond
two physical BRI lines together AFAIK.

It may be that a new switch with two BRI's is the way to go, have you got
an analogue fax line that can carry ADSL?

--
Graham.
%Profound_observation%

Jono wrote:
> (supersedes <(E-Mail Removed)>)
>
> Marty Fremen expressed precisely :
>> I assumed at first that we might be able to have more than two
>> simultaneous phone calls going on it but that doesn't seem to be
>> the case,
>
> Eh? this should be the case with your existing two-line analogue
> number and it would certainly be possible and normal with ISN2e.


Jono I think you've just shot from the hip & missed by a mile.

1 x ISDN2e & 2 x analogue pots can not carry more than 2 calls at any
one time as both case only have 2 channels (effectively).....

"Graham." wrote:

> "Eeyore" <(E-Mail Removed)> wrote
> > Marty Fremen wrote:
> >
> >> Before I make an ass of myself with a BT salesman who is trying to
> >> "upgrade" our analogue phone line to ISDN2e
> >
> > What on earth for ?
> >
> >> am I right in thinking that ADSL will not work over an ISDN connection?
> >
> > Yes.
>
> Actually no.
> ADSL over an ISDN line is perfectly normal in Germany.

This isn't de.telecom.broadband though..

Graham

kráftéé laid this down on his screen :
> Jono wrote:
>> (supersedes <(E-Mail Removed)>)
>>
>> Marty Fremen expressed precisely :
>>> I assumed at first that we might be able to have more than two
>>> simultaneous phone calls going on it but that doesn't seem to be
>>> the case,
>>
>> Eh? this should be the case with your existing two-line analogue
>> number and it would certainly be possible and normal with ISN2e.
>
>
> Jono I think you've just shot from the hip & missed by a mile.
>
> 1 x ISDN2e & 2 x analogue pots can not carry more than 2 calls at any one
> time as both case only have 2 channels (effectively).....

Oh aye. silly me. missed the "more than"