[Freeswitch-dev] FreeSWITCH SS7 stack

Wed Jan 28 15:01:25 PST 2009

Well, I cannot disclose the commercial stuff, but I can share some
experience and resources that I've found to be useful. For example:

Getting started: http://pt.com/page/tutorials/ss7-tutorial/
ITU recommendations: http://eu.sabotage.org/, dig in to www/ITU.
I guess you know www.openss7.org
Online (but recently restricted) MTP3 decoder:
http://www.linkbit.com/decoder/decoder.html
Perhaps some design inspiration:
http://www.nmscommunications.com/DevPlatforms/Support/SWandDoc/default.h
tm?section=4&ID=43&PAC=472&ST=Current&dok=

Want more?
Remko

-----Oorspronkelijk bericht-----
Van: freeswitch-dev-bounces at lists.freeswitch.org
[mailto:freeswitch-dev-bounces at lists.freeswitch.org] Namens Michael
Collins
Verzonden: woensdag 28 januari 2009 22:23
Aan: freeswitch-dev at lists.freeswitch.org
Onderwerp: Re: [Freeswitch-dev] FreeSWITCH SS7 stack

How about some SS7 documentation? ;)
-MC

On Wed, Jan 28, 2009 at 12:47 PM, Remko Kloosterman
<R.Kloosterman at mtel.nl> wrote:
> I've done some SS7 development in the past, using dedicated TX3220 and

> TX4000 signalling boards from NMS Communications (recentlty aquired by

> Dialogic). Even with a lot of commercial documentation available, it's

> horribly complex stuff, especially redundancy. And you need another 
> SS7 switch to test against for interoperability. And SIP trunks are 
> becoming more and more commonly available these days, so one can 
> question if it's worth the effort. Still, I would really like it if 
> someone would try and develop such a feature.
>
> Off-topic: If you need SS7 and are willing to pay for it, I can 
> recommend audiocodes mediant gateways. There's a model available with 
> embedded SS7 signalling, provided by Teles. And real cheap too, 
> compared to other SS7 switches.
>
> ________________________________
> Van: freeswitch-dev-bounces at lists.freeswitch.org
> [mailto:freeswitch-dev-bounces at lists.freeswitch.org] Namens Shane 
> Burrell
> Verzonden: woensdag 28 januari 2009 20:50
> Aan: freeswitch-dev at lists.freeswitch.org
> Onderwerp: Re: [Freeswitch-dev] FreeSWITCH SS7 stack
>
> Trust me AT&T doesn't have free docs. There are hundreds of ANSI SS7 
> docs and they put alot of work and money to make sure you can't get
them via
> google search.   Much of it is not in ITU but many ITU switch support
ANSI
> features such as Class 5.  Even with the ITU docs in hand you'll need 
> a large team to get it complete enough for Class 4/5 operations
anytime soon.
> On Jan 28, 2009, at 2:42 PM, Jan Berger wrote:
>
> Next time try to search if AT&T have a free version of the doc first -

> you might get a suprice.
>
> ________________________________
> Date: Wed, 28 Jan 2009 13:36:02 -0600
> From: krice at freeswitch.org
> To: freeswitch-dev at lists.freeswitch.org
> Subject: Re: [Freeswitch-dev] FreeSWITCH SS7 stack
>
> Must be nice ;)
>
> Here in the states they want you to pay for documentation on cable 
> pinouts and don't even think about getting documentation for something

> like TCAP LIDB without giving up your first born and an arm.
>
>
>
> ________________________________
> From: Jan Berger <janvb at live.com>
> Reply-To: "freeswitch-dev at lists.freeswitch.org"
> <freeswitch-dev at lists.freeswitch.org>
> Date: Wed, 28 Jan 2009 20:22:38 +0100
> To: <freeswitch-dev at lists.freeswitch.org>
> Subject: Re: [Freeswitch-dev] FreeSWITCH SS7 stack
>
> I live in Europe - and ITU/ETSI are free :)
>
>
> ________________________________
>
> Date: Wed, 28 Jan 2009 12:37:48 -0600
> From: krice at freeswitch.org
> To: freeswitch-dev at lists.freeswitch.org
> Subject: Re: [Freeswitch-dev] FreeSWITCH SS7 stack
>
> That's the same thing we saw...  Everyone wants SS7 but no one wants 
> to help fund it... And to make matters worse just getting proper 
> documentation for ANSI SS7 is not exactly a cheap endeavor. 
> Unfortunately telecordia and crew still want to charge thousands of 
> dollars for the docs when the ITU decided ages ago to make those 
> available for free... Even then its still a substantial amount of 
> effort to get something working (even if you have active links you can

> use to help understand whats going on)
>
> K
>
>
>
>
> ________________________________
>
> From: Jan Berger <janvb at live.com>
> Reply-To: "freeswitch-dev at lists.freeswitch.org"
> <freeswitch-dev at lists.freeswitch.org>
> Date: Wed, 28 Jan 2009 19:30:15 +0100
> To: <freeswitch-dev at lists.freeswitch.org>
> Subject: Re: [Freeswitch-dev] FreeSWITCH SS7 stack
>
> This is a little like the hen and the egg...
>
> No one will support you starting to write a SS7 ++ stack, but once you

> get going and the first stacks turns up, so will business.
>
> Jan
>
>
>
> ________________________________
>
>
> From: mike at jerris.com
> To: freeswitch-dev at lists.freeswitch.org
> Date: Tue, 27 Jan 2009 15:06:11 -0500
> Subject: Re: [Freeswitch-dev] FreeSWITCH SS7 stack
>
>
> I still see a compelling business case for a foundation supported free

> open source set of libs for the base protocols, commercially supported

> by multiple contributors who build higher level applications using the

> base protocols.  In a situation like this, commercial sponsors can 
> pool resources for certification.  Obviously anyone using a modified 
> version would not be using certified code but the sponsors who pay for

> certification would still get multiple benefits.
>
> Mike
>
> On Jan 27, 2009, at 2:07 PM, Ken Rice wrote:
>
>
>
> I don't see a non Commercial one getting certification and then 
> getting widely used here in the states... That's the problem you have 
> to spend tons of time to get them certified... Its not like SIP where 
> they will pretty much take anything and everything unfortunately
>
> K
>
> From: Brian West <brian at freeswitch.org>
> Reply-To: "freeswitch-dev at lists.freeswitch.org"
> <freeswitch-dev at lists.freeswitch.org>
> Date: Tue, 27 Jan 2009 12:59:18 -0600
> To: "freeswitch-dev at lists.freeswitch.org"
> <freeswitch-dev at lists.freeswitch.org>
> Subject: Re: [Freeswitch-dev] FreeSWITCH SS7 stack
>
> We should have an open source one too thats MPL or BSD ... I don't 
> agree with selling protocols like this commercially.  Guess thats just

> the Open Source in me wanting that stuff to be free.
>
> /b
>
> On Jan 27, 2009, at 12:27 PM, Ken Rice wrote:
>
> There are things available for this in the commercial space.  One from

> CometSig.com and one from sangoma.  Nothing at this time in the 
> opensource arena. (OpenSS7 will not be integrated with freeswitch due 
> to licensing
> issues)
>
> Contact me off list if you are interested in either of the commercial 
> versions I can assist you with these things.
>
> Ken
>
>
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