[Asterisk-Dev] Who looks after PRI Layer 1 framing?

Steve Kennedy steve-asterisk at gbnet.net
Thu Jul 7 07:36:55 MST 2005


On Thu, Jul 07, 2005 at 03:06:00PM +0100, Haigh, Michael wrote:

>    I'm having a problem getting Asterisk to talk to Cable and Wireless
>    PRIs in the UK.  After a lot of looking at bits on the wire and
>    looking at the carrier switch, it seems that the carrier switch is
>    seeing an "unintentional loopback" condition and taking the PRA out of
>    service.

Make sure the lines are EuroISDN NOT UK ISDN which is a slightly
different version which Asterisk does not support.

Most UK operators will set UK ISDN by default.


Steve

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