Why thank you, sir! -MC On Wed, Jan 28, 2009 at 3:24 PM, William King <william@channelxstream.com> wrote:
Way to go MikeC, taking a lively discussion on the e-mail list serve and converting it into useful wiki docs. :)
-William
On Wed, 2009-01-28 at 15:07 -0800, Michael Collins wrote:
This is very helpful, thanks! -MC
On Wed, Jan 28, 2009 at 3:01 PM, Remko Kloosterman <R.Kloosterman@mtel.nl> wrote:
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@lists.freeswitch.org [mailto:freeswitch-dev-bounces@lists.freeswitch.org] Namens Michael Collins Verzonden: woensdag 28 januari 2009 22:23 Aan: freeswitch-dev@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@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@lists.freeswitch.org [mailto:freeswitch-dev-bounces@lists.freeswitch.org] Namens Shane Burrell Verzonden: woensdag 28 januari 2009 20:50 Aan: freeswitch-dev@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@freeswitch.org To: freeswitch-dev@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@live.com> Reply-To: "freeswitch-dev@lists.freeswitch.org" <freeswitch-dev@lists.freeswitch.org> Date: Wed, 28 Jan 2009 20:22:38 +0100 To: <freeswitch-dev@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@freeswitch.org To: freeswitch-dev@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@live.com> Reply-To: "freeswitch-dev@lists.freeswitch.org" <freeswitch-dev@lists.freeswitch.org> Date: Wed, 28 Jan 2009 19:30:15 +0100 To: <freeswitch-dev@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@jerris.com To: freeswitch-dev@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@freeswitch.org> Reply-To: "freeswitch-dev@lists.freeswitch.org" <freeswitch-dev@lists.freeswitch.org> Date: Tue, 27 Jan 2009 12:59:18 -0600 To: "freeswitch-dev@lists.freeswitch.org" <freeswitch-dev@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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