> 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)