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

John freeswitch at earthspike.net
Fri Jun 10 14:22:50 MSD 2011


You won't be burned at the stake for heresy and are probably right that 
this is the problem, as we have had delays in getting CLIP implemented. 
 From your comment I assume that COLP is not automatically enabled (even 
though I am paying for additional SNDDIs) but has to be ordered 
specifically.  Our service provider is on to it, and I am waiting till 
CLIP/COLP is applied before doing any more testing.  I'll post here with 
the results.


On 10/06/11 10:08, shouldbe q931 wrote:
> On Thu, Jun 9, 2011 at 7:10 PM, John<freeswitch at earthspike.net>  wrote:
>> [I've forked this thread as it really should have been 3 separate
>> threads to start with.]
>> Thanks,
>> I have tried every combination I can think of, except 10 digits which I
>> will give a go.  That makes sense as in the general case it would permit
>> non-geographical numbers to be presented.
>> The lines are provided as 2 x ISDN2e with a lead number covering all 4
>> channels.  The NTE8s are labelled 1-2 and 3-4, so not separate
>> individual lines, I thnk.
>> We currently have a Single Number DDI in addition, and hope to increase
>> that to 2 very soon; the 3 numbers between them will serve 3 separate
>> business units, so we want to be able to present the correct outbound
>> CLI from each business unit.  We also have a remote call forward from
>> another number to the lead number, but presenting that really would be
>> CLI spoofing, so I am not expecting that to be permissible. But I would
>> expect those that are directly allocated to the 2 lines/4 channels to be
>> allowed to be presented.
>> John
>> On 09/06/11 08:27, shouldbe q931 wrote:
>>> On Mon, Jun 6, 2011 at 10:36 PM, John<freeswitch at earthspike.net>    wrote:
>>>> Hello,
>>> <snipped for brevity>
>>>> 2. We have 2 Single Number DDI numbers configured over the 4 channels.
>>>> I want to set up outgoing calls so that they can appear to come from
>>>> either of the two numbers, but at present the outgoing CLI appears to be
>>>> overridden by the telco (BT) to only use one of the numbers.  Has anyone
>>>> got this working in UK, and what is the format for the
>>>> outbound_caller_id_number: last 6 digits or full 11 digits?  I note that
>>>> the inbound called number is only the last 6 digits.
>>> <snipped for brevity>
>>>> Thanks for all the great support I have already got just from editing my
>>>> Wiki User page; this is a friendly group!
>>>> John
>>> I can only comment on the BT part.
>>> If they are two individual lines, you're out of luck with BT, as they
>>> do not allow CLI spoofing, which this would be.
>>> I would suggest sending BT the same number of digits that they send
>>> you, if that doesn't work try 10 digits. If  you are not sending the
>>> "correct" number of digits for a valid DDI on the trunk, then they
>>> will send the lead number for the trunk.
>>> Cheers
>>> _______________________________________________
> I know that this might sound like heresy :-)  but have you checked
> spoken to BT and asked them if CLIP and CLOP on the lines ?
> I think CLOP is outbound and CLIP is inbound, but I might have it the
> wrong way round...
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