[asterisk-users] Connecting a PSTN gateway to Asterisk using PRI

[Steve Totaro]

On point to point data, you will just be sending the calls over SIP.
While theoretically, you could use a Digium or Sangoma card to
terminate your data T1, I would suggest a Cisco box.  Using G729 or
GSM (or even Speex if you are cool ;-) you can push many more calls
through the circuit than a point to point tie or voice circuit.

Thanks,
Steve Totaro

On Fri, May 16, 2008 at 11:44 AM, Peter Eisch <peter at boku.net> wrote:
>
> Using a T1/E1 ISDN interface it's somewhat trivial.  In zapata's conf:
>
> group=0,11
> context=from-pbx-custom
> switchtype = national
> signalling = pri_net
> pridialplan=national
> prilocaldialplan=national
> channel => 1-23
> group=
> context=default
>
> Note the pri_net for signalling.  I have several PRI spans running this way
> to PBXs.  Then configure your dialplan to match the remote site's extensions
> to use the right trunk interface.
>
>
> On 5/16/08 9:48 AM, "Al Baker" <bwentdg at pipeline.com> wrote:
>
>> This is 'basically' a tie-line between the boxes.
>> Yes - it is done all the time between PBX's. You are basically nailing
>> up a circut between the boxes.
>> It could be a simple as a simple POTS leased line or a multi-t1 bundle
>> between them.
>> How it is physically done with DIGIUM's boards under * ?
>>
>> Someone else will have to answer that
>>
>>
>> Pascal Maugeri wrote:
>>> Hi
>>>
>>> I have a system (S) that has a PSTN gateway to accept incoming calls
>>> and setup outgoing calls from/to Telco network. In the other hand I
>>> have a distant Asterisk box (A) that I would like to connect to (S)
>>> using the PRI interface.
>>>
>>> I understand that the proper way is to order to my Telco two PRI lines
>>> one for (S) and another for (A), and configure (S) and (A) to call
>>> each other numbers when they have to interconnect.
>>>
>>> Now, might it be possible to connect directly (A) and (S) using their
>>> PSTN interfaces without having to go through to my Telco ?! Does it
>>> make sense ? Is it technically feasible ? I guess that the Telco
>>> network is providing routing, number assignation, etc. and it sounds
>>> pointless to do this. Nevertheless could you confirm it is
>>> possible/impossible and why ? Is there a better way to do that ?
>>>
>>> Thanks in advance,
>>> Pascal
>>>
>>>
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>>>
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>
>
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