[Asterisk-Users] UK ISDN with Asterisk

[Tim Robinson]

Hi

1) Don't bother considering analogue lines.  Too problematic and not any 
cheaper in the long term.

2) the HFC chipset ISDN cards at £13 are fine as long as you make sure 
you assign each card its own IRQ in the bios.

http://www.komplett.co.uk/k/ki.asp?sku=119006&cks=SPK

I have 3 of these cards running in a Celeron 450.  2 cards in NT mode 
for ISDN phones and 1 connected to my BT ISDN 2e line.

You will need bristuffed asterisk from www.junghanns.com to drive the 
cards.  They use native zaptel drivers.

DDI and caller ID on ISDN are all supported natively in Asterisk.  Works 
perfectly in PTP and PTMP modes.

Best regards
Tim Robinson
Basingstoke, UK


Henry Owens wrote:
> Hi all,
> 
> I'm currently tasked with implementing a low-cost, high performance and
> reliable telephone system for a motorcycle dealership in the UK, and
> Asterisk is my primary candidate for the system.
> 
> My question is: can Asterisk work well as a small office (8 extensions)
> PBX, with a mixture of analogue and IP phones, on an ISDN2e telephone
> line from BT?
> 
> The reason i am thinking of using ISDN2e is that i need to be able to
> have two lines, but with one number (i.e. if someone calls on the main
> number and stays on the call, and then a second person calls the same
> number, instead of an engaged tone, they will get through and another
> staff member can take the call). If there is another way to do this with
> anaologue lines, i'm open to suggestions. I have looked at using a
> service such as sipgate.co.uk to allow this to happen, however the fact
> that i can not list the number in a normal telephone directory would be
> prohibitive (though i will probably want to connect to a VoIP service
> for outbound calls also).
> 
> If it does work well with ISDN, will features such as DDI (direct dial
> inwards) and caller id be possible? And can anyone recommend any
> hardware that will allow me to connect my asterisk PBX to the ISDN line?
> 
> Many thanks for any information you can offer!
> 
> Regards,
> Henry.
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