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

Race Vanderdecken ss7 at codetyrant.com
Sun May 15 15:47:56 CDT 2005


Okay, there seems to be agreement as to how to do this. Doing ISUP and
TCAP is what I have heard from others I have proposed the same questions
to in the past.

Running the SS7 to PSTN interface on a "cisco" type box also has been
recommended by others. By "cisco" I mean any certified box that is
available to most of the VoIP guys. Having to purchase an X thousand
dollar box is not going to work. Have any of you looked at ss7box.com?

So, we need to create a SS7 socket interface to asterisk.

I have built several socket interfaces in the past that have worked in
commercial products. All were based on Stevens' Unix Programming and
Networking books.

Where do I find the socket interface on our "cisco" ss7 box?

Race Vanderdecken



-----Original Message-----
From: asterisk-ss7-bounces at lists.digium.com
[mailto:asterisk-ss7-bounces at lists.digium.com] On Behalf Of Benny
Millares
Sent: Thursday, May 12, 2005 4:42 PM
To: asterisk-ss7 at lists.digium.com
Subject: RE: [Asterisk-ss7] Let us design an open source SS7
interfaceforAsterisk


I think this is a very valid point.

bm


-----Original Message-----
From: asterisk-ss7-bounces at lists.digium.com
[mailto:asterisk-ss7-bounces at lists.digium.com] On Behalf Of Matthew
Crocker
Sent: Thursday, May 12, 2005 4:33 PM
To: Andrew Edem
Cc: asterisk-ss7 at lists.digium.com
Subject: Re: [Asterisk-ss7] Let us design an open source SS7 interface
forAsterisk

>
> 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

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