Thank you William, I am looking at openSS7 for advice. The asterisk project there stalled a few years ago.
I have also contacted the SS7box project and they have offered advice and support. SS7Box has a very detailed illustration of SS7 and how it works. They are more interested in the SS7 side of the equation and have extensive SS7 experience. SS7box would like to see SS7 and asterisk holding hands. >From what I have found the ISUP and Q.931 are the pieces to concentrate on. Like I stated earlier this will be much easier to do with an extended design period so please feel free to comment to the list or directly to me. Please remember that while VoIP direct to PSTN interfaces are becoming more common in the US, E1 & C7 is very popular in Europe. And yes, there are commercial products you can buy from Cisco and Tekelec that might make more economic sense, but innovation does not come from complacency. Besides it might be cool in a geek way. Race "the Tyrant" Vanderdecken -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of William Waites Sent: Wednesday, March 30, 2005 11:30 AM To: Commercial and Business-Oriented Asterisk Discussion Subject: Re: [Asterisk-biz] Looking for SS7 design input On Wed, Mar 30, 2005 at 10:45:54AM -0500, Race Vanderdecken wrote: > > Greetings All, > > I am looking for input on what an SS7 interface to Asterisk should > look like and what it will need to be of any use. Hi, I would favour an approach that was not tightly coupled to Asterisk. It would involve improving the Asterisk SIP channel to support SIP-T, and at that point what you want is an SS7 <---> SIP-T translator, which is also independently useable. Often you will have a separate T1 that would be used only for signalling, and that could even be handled by a Digium card, but the software to control this T1 needn't be Asterisk, though you might look to Asterisk as documentation on how to get bits in and out of the hardware. Remember that you can use a single T1 to carry signalling for many DS3s worth of telephone calls, so there isn't that much need to have the STP be the same box as the media gateway. For the SS7 stack itself, you might look at OpenSS7, which I am sure you must have already found... Even though it uses SysV streams... -w -- William Waites, Consulting Technologist Consultants Ars Informatica S.A.R.F. [EMAIL PROTECTED] / +1 416 848 1527 x514 +1 514 963 4096 (Direct) _______________________________________________ Asterisk-Biz mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-biz _______________________________________________ Asterisk-Biz mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-biz
