[Asterisk-Users] OZ ISDN

[dkwok]

Kimble Young wrote:

"If you go the analogue route:

* You'll get poor audio compared to ISDN which is crystal.
* Each number will act like a seperate line unlike with an ISDN card where
you can receive two calls simultaneously on the same line.
* You'll lose cool ISDN features like call deflection.
* It won't be as reliable (speculation).
* It'll probably cost just as much for two analogue cards as a fritz card.

On the positive side you won't have to go through a lot of frustration
getting the fritz working.

In summary using an analogue adaptor on ISDN rather defeats the purpose of
ISDN."

You are absolutely spot on. I am hesitated by the sheer amount of 
configuration with the ISDN driver.

The actual implementation is actually even a bit of complicated. The 
ISDN is used primarily for internet connection and voip from an 
Australian provider. In that case I need to use whatever driver to 
intiate dail up to the internet. Will it be isdn4l in this case. Now if 
and when internet is down for whatever reason, asterisk can still 
perhaps use the capi driver to connect calls.

I don't have much experience in isdn at all. I am not sure where such 
setup can be done simitaneously. It would be nice if someone can point 
me to the right direction.

The Telstra connection already come with Nt1 +11 modem and I have 
already got pretty good doc to set it up with redhat 9.0. So I don't 
have to worry about isdn stuff. I wish to go the correct route which is 
using Fritz card to do this but I am afraid it is not possible.

Regards

-- 
David Kwok, CISSP
Tel: 612 82315701 ext 1002
Iaxtel/FWD # 17001813482 ext 1002
CISSP, Certified Information System Security Professional
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