[Asterisk-Users] What hardware to use for ISDN in Romania

[Cosmin Prund]

The line is supposed to be standard EUROISDN; I found no mention of DSS1 on
the technical specs page, I only found EUROISDN.

The TELCO is going to provide me with a NT equipment that has two analog
ports and two S0 ports; Of the two S0 ports one is supposed to be used to
connect the PBX to the NT; I've got no idea what the other ports are, I can
only guess the two analog ports will give me access to the two voice
channels using plain-old analog phones.

I'm asking about "risks" because I ran through the wiki's and ended up very
confused because it seems Asterisk's support for ISDN is driver-dependent
and drivers are obviously kind of hardware dependent.

The "risk" I'm talking about is signing up for a ISDN contract only to find
I can't get the drivers going, or I can't fully use the service. Since I
don't have access to any other ISDN installation OR ISDN hardware, all I've
got to go on is email, google and the wiki!

As a matter of fact I don't know what hardware to look for! Do I buy this
from a telco provider or from a computer hardware shop? Am I looking for
something listed in the "modem" category or for some other hardware? Since
there aren't that many Asterisk consultants in Romania I don't really know
where to ask. And yes, I did find MODULO in Bucharest (listed on the wiki as
consultants) but they did not return my last two emails so I'm on my own :-)

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Juergen K. Zick
> Sent: Saturday, March 04, 2006 11:46 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] What hardware to use for ISDN in Romania
> 
> HI There
> 
> if the line is a standard EUROISDN with DSS1 protocol then it's not a risk
> at all to take and to connect it. You get an S0 interface from your TELCO
> and there cou can plug in any EUROISDN compliant equipment e.g. TAs,
> phones
> and, of course, ASTERISK ...
> 
> I would suggest that you AT LEAST try to get an ISDN-TA  (ISDN <-->PSTN
> converter for "old" analogue phones and fax machines) as well, for testing
> and backup purposes. They are cheap to get e.g. for abt 2-5 EUR e.g. on
> EBAY.
> 
> Depending on your budgets (time and money), experiences and skills you can
> equip your ASTERISK box with incoming and outgoing ISDN channels. You will
> find quite a lot config examples for that, supposingly ISDN-cards with
> HFC-S chipsets are the most versatile ... However, ISDN drivers are still
> a
> bit tricky, but youo have depending on your kernel version at least
> ISDN4LINUX, vISDN, mISDN and chan_modem, chan_capi, chan_capi-cm,
> chan_misdn as config options ...
> 
> Anything else you shoul dbe able to find in the WiKis ...
> 
> Regards,
> 
> Jürgen
> 
> 
> 
> >My land-line provider (Romtelecom) has a very nice offer for ISDN. All in
> >all they offer me a digital land-line with 1 base number + 2 MSN's and
> that
> >would make a grate addition to my full-time home office.
> >
> >Romtelecom say they're providing EURO-ISDN and the line is compatible
> with
> >any euro-isdn compliant equipment. They say they'll install a NT at my
> >office and this NT will provide me with 1 (one) SO (or was that S0 - zero
> >opposed to the letter O?) port to connect to my PBX.
> >
> >My questions:
> >What hardware do I use to connect the line to my Asterisk?
> >What are the risks involved (bad drivers etc)?
> >Has any one used this in Romania?
> >
> >Thanks!
> >
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