As I want to experiment with the SS7 implementation, is there any cheap sources for SS7 capable cards? I would have to go out of pocket and most cards are in the $500.00+ range..... All I would need is the ability to configure a couple of A-Links. One of the previous posters asked about an A-Links on one channel and the rest of the channels being bearer. That's what I'd like to do. Thanks, Ray ____________________________________________________________________________________ Yahoo! oneSearch: Finally, mobile search that gives answers, not web links. http://mobile.yahoo.com/mobileweb/onesearch?refer=1ONXIC