[Asterisk-ss7] My Take on the SS7

[Domjan Attila]

But the switches are very stupid when using PRI. Eg. EWDS can't place
calls width different called area code to one E1...
 
On Tue, 2005-09-06 at 14:03 +0100, Derek Conniffe wrote:
> Here in Ireland its easier to get "wholesale" call termination prices 
> with the local telcos if you are dealing with SS7 rather than PRI ISDN.  
> I think its just because the different technologies are how they view 
> carriers vs. end-users.  It doesn't make sense I know because both SS7 
> and PRI ISDN come from the same switches.
> 
> Derek
> 
> Richard Gintz wrote:
> 
> >Can someone give me an example of the cost/feature differences between SS& and
> >PRI ISDN?  I just got a PRI line in from XO Communications (Texas).  And how
> >much differently would Asterisk configurations be using SS7 vs. PRI?
> >
> >Thanks
> >
> >  
> >
> >>>To me the reason I'd really like SS7 over PRI ISDN is that I would 
> >>>really like to get the CPC data on incoming calls which PRI 
> >>>ISDN cannot 
> >>>do and thats it in total. 
> >>>      
> >>>
> >>I am not sure what _I_ would do with the CPC information in my case.  It may
> >>be good to know where the call came from so that I can setup more cost
> >>effective route in the future but Caller ID (number) seems good enough to
> >>start. So simply converting the SS7 message to a PRI should be good enough.
> >>If I can pass the caller ID information down to the Voip Subscribers that
> >>would be the only reason I need it.
> >>What do _you_ use the CPC information for?
> >>
> >>    
> >>
> >>>I think not many people need SS7 - maybe its not big/available in the 
> >>>US?  Also normal businesses will get by fine with PRI ISDN 
> >>>(they don't  want/need the CPC switch data).
> >>>      
> >>>
> >>It is the primary way to interconnect to the ILEC (at least Qwest in the
> >>Northwest).  The cost of lines controlled by SS7 is only a fraction of PRIs
> >>from Qwest or other providers.
> >> 
> >>    
> >>
> >>>Markku Korpi's driver is not cheap for sure
> >>>      
> >>>
> >>Yes but it is certainly less money than most hardware solutions I have seen
> >>out there. (Markku hasn't gotten back to me yet from my first email to him
> >>so I am not even sure whether I will be able to get it if I want it)
> >>
> >>    
> >>
> >>>Best of luck!  When you are finished I you might want lots of 
> >>>money for 
> >>>your non-opensource SS7 software too! :)
> >>>      
> >>>
> >>I am not a greedy person but of course I wouldn't mind lots of money (That
> >>is why I am in business).  Asterisk has helped us a ton and at very little
> >>cost.  We might be able to give back depending on what it will end up
> >>costing.  There is always a consulting / support income possibility even if
> >>it is open sourced.  (I don't want to talk like it is done before I even
> >>start though)
> >> 
> >>
> >>
> >>_______________________________________________
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> >>Asterisk-SS7 at lists.digium.com
> >>http://lists.digium.com/mailman/listinfo/asterisk-ss7
> >>
> >>    
> >>
> >
> >
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> >  
> >
> 
> 
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