[Asterisk-ss7] Let us design an open source SS7 interface for Asterisk

Matthew Crocker matthew at crocker.com
Fri May 13 07:28:10 CDT 2005


Don't you need TCAP for LNP & 800 database dips?  LNP is a 'must have'.

-Matt

On May 12, 2005, at 8:49 PM, Andrew Edem wrote:

> But what's the point of putting TCAP in asterisk? Are you planning on
> writing applications for asterisk that use TCAP? Or, do you want
> asterisk to be an SCP?
>
> Personally, I think most people out there would like to see  
> asterisk be
> able to terminate calls to SS7 networks. For that, you only need ISUP.
>
> -Andrew
>
> On Thu, May 12, 2005 at 04:33:20PM -0400, Matthew Crocker wrote:
>
>>>
>>> My idea is to create a generic interface for asterisk to
>>> access ISUP applications via sockets. The idea would be to
>>> create an ISUP library similar to libPRI, but, instead of talking
>>> directly over a zap device, communicate via RPC. That way it  
>>> would be
>>> very easy to build a middleware solution to have asterisk use Aculab
>>> cards, openSS7, or something like that. And, since fundamentally,
>>> asterisk is never going to use anything except ISUP, it doesn't
>>> need to
>>> know about MTP2/MTP3/SCCP/etc.
>>>
>>>
>>
>> I would include ISUP & TCAP.  Ideally I would rather have my SS7 A-
>> links terminate in a purpose built box (ss7box, Cisco 2600 with ss7
>> software).  I would want Asterisk to handle the ISUP/TCAP over IP
>> (SIGTRAN ??).   I think it will be nearly impossible to get Asterisk-
>> ss7 certified by an RBOC for interconnect to their network.  Without
>> certification it is only good as a toy in a lab scenario.   Using an
>> existing box (cisco) would make the certification process much
>> easier, unnessesary.
>>
>> --
>> Matthew S. Crocker
>> Vice President
>> Crocker Communications, Inc.
>> Internet Division
>> PO BOX 710
>> Greenfield, MA 01302-0710
>> http://www.crocker.com
>>
>

--
Matthew S. Crocker
Vice President
Crocker Communications, Inc.
Internet Division
PO BOX 710
Greenfield, MA 01302-0710
http://www.crocker.com



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