There has been a lot of discussion about ISDN BRI on the list - a search will turn up plenty of discussion!

You're right about there being a lot of ISDN cards available that are certified for use in Europe. They fall into two categories - active and passive. Passive cards are cheap and generally operate through ISDN4linux and asterisk's chan_modemi4l. The reported disadvantages of this approach are:

- delay during calls
- echo (it's disputed what the cause of it is but it's a bit of a nuisance)
- call tones don't follow PSTN patterns.

The active cards (AVM is the major supplier, I think) are better. If you get one with a CAPI interface then you can use the asterisk chan_capi driver. I haven't any experience of this type of card - maybe someone else can provide feedback.

Iain






--On Monday, June 2, 2003 12:33 am +0200 Piotr Adamiak <[EMAIL PROTECTED]> wrote:


Hello,

Anyone on this group using / implementing * and hardware certified for
use in Europe ? I believe that ISDN4Linux cards mostly have telecomm
certificates, so using them should be safe on the client side. Are there
any major issues / problems associated with using such cards with * ? I
am talking about a small / very small office with single - few lines.

All the best,

Piotr Adamiak

--
I am updating my DNA. 'Microsoft Genome 2.0' says I need to reboot my
body to continue. I am worried that I may not have enough free
chromosomes to allow the full installation to complete.

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