[Asterisk-Users] UK BT IDSN30e 'pass through' with TE205P/AvayaArgentOffice?

[Mark Ackroyd]

> You should also ensure the PRI is really configured for EuroISDN, many
> BT PRI's are actually UK ISDN which Asterisk doesn't support (it's an
> older version).

I had a problem along these lines, when I first started with asterisk, the
PRI was originally DASS2, but needed to be Q931 Full ETSI for it to work.
In between we had it configured for Q931 1/2 ETSI and the outbound didn't
work.  What the actually difference is I don't know.  

Mark