[Asterisk-Users] Who would use Asterisk SS7?

[Matthew Pallotta]

Perhaps this link might help.

http://www.openss7.org/

On Sat, 2003-05-24 at 17:58, Mike M wrote:
> On Saturday 24 May 2003 09:18, Thilo Salmon wrote:
> > On Sat, 2003-05-24 at 08:47, Mike M wrote:
> > > My question is targeted to * users that have, or are considering getting,
> > > the competitive operator status.  Would more facilities based competitors
> > > exist in the market if the cost of equipment were drastisically reduced? 
> > > Would SS7 on * be useful from a commercial standpoint to a user?
> >
> > Speaking for myself I can only answer you with a 'yes, very much so'.
> > Being grown up around IP networks I find it increasingly difficult to
> > design communication services without adding voice-capabilities.
> >
> > At least in Germany (and I assume this is true for most countries with
> > recently opened telecommunication markets) it makes economic sense to
> > interconnect with the incumbent telco. This is almost certainly true
> > once your network has reached a certain size.
> >
> > I see two issues which need to be solved before asterisk SS7 comes to
> > live in actual networks:
> >
> > Afaik SS7 does carry way more information then what is exposed to the *
> > user. I have a feeling that quite some functionality would need to be
> > added before SS7 becomes usable. E.g. providing a restricted calling
> > party number to an ISP or law-enforcement customer might be a
> > requirement while this would be illegal to do for ordinary customers. In
> > another case you might want to provide some information to the user such
> > as 'this number is not in use' without "picking up" (and imposing
> > charges to the calling party).
> 
> I think these features are implemented in call-processing logic behind the 
> ISUP interface.  The ISUP IAM would be altered as required for 
> law-enforcement agencies (config option possibly). The second fefature sounds 
> like a Release Cause field value that is filled conditionally in c-p. 
> >
> > The other issue is a legal one. In order to connect to the incumbent
> > telco your equipment has to be certified. I believe unless quite a few
> > of us get together, this one might be a real problem.
> 
> Certification can be a long and steep hill to climb.  Sometimes it is 
> overcome through a tiered approach: The incumbent (DT for example) calls the 
> shots.  The 2nd tier competitive operator meets DT's interconnection 
> requirements.  The 2nd tier operator offers network connection to the 3rd 
> tier competitors with loosened requirements.  Certification can also be a 
> fairly easy hurdle to cross in some markets.   Certification in one market 
> can carry over to another too.  Getting as much information as possible on 
> network certification is a key to assessing if a * ss7 interface can be used 
> in a particular market.  
> >
> > Thilo
> >
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