[Freeswitch-users] UK ISDN outgoing CLI (was Re: FreeTDM - Sangoma B700 - ISDN connection questions - UK)

[John]

Thanks, Gavin. That would be really useful.

John

On 08/07/11 19:51, Gavin Henry wrote:
> Hi John,
>
> We set this up for a customer using a Sangoma card and FusionPBX not
> long ago. I can dig out the config next week when back in the office.
> It's for ISDN30e but should help.
>
> Thanks.
>
> On 7/7/11, John<freeswitch at earthspike.net>  wrote:
>> Jan,
>>
>> I have tried every combination of unknown, national and international
>> with every combination of number length.  I have also confirmed that by
>> using wanpipemon to capture the D-channel messages.  When I went through
>> them with Wireshark and compared them with Q.931, everything was being
>> set correctly by the Sangoma card/drivers.  I am at the point now where
>> I need someone who has worked with BT ISDN switches to tell me what they
>> can accept.  It seems that this is a national secret over here, or
>> instead that they can accept almost anything and my lines have been
>> configured to override the outgoing calling number with the base
>> number.  Either way, the only way in which I think I am now going to get
>> a result is by booking a fault.  Your helpful comment about modern
>> switches being able to work this out also confirms that I am probably
>> not looking at a Q.931 formatting error on my part, but on a blockage in
>> the exchange.  I don't have a problem with the called number, for example.
>>
>> John
>>
>> On 07/07/11 23:09, Jan Berger wrote:
>>> I must admit I don't remember what CLIP and CLOP is -- and my Q.931
>>> experience is getting a bit rusty...
>>>
>>> Can you get a snoop of L3 out and in so I can see what you send and
>>> what the switch responds back?
>>>
>>> I prefer to use Called and Calling -- The numbers contain a few bits
>>> that tell what number this is. The most common are unknown, national
>>> and international. These bits must match the actual number you send.
>>> The 10 digit number is a unknown, the 11 digit is a national.
>>> International start with 00 nn
>>>
>>> On top of that you will face that modern switches are quite capable
>>> and able to configure whatever behaviour they want per line with
>>> regards to called/calling -- so you need to find out exactly what the
>>> switch expect on both called and caller for outgoing to behave as you
>>> want.
>>>
>>> /Jan
>>>
>>>>> On our PRI systems we are sending 10 digits (2071231234), and on the
>>>>> BRI system we are sending 11 digits (02071231234).
>>>>>