mike, he means Custom Ring Back Tone, where a subscriber can have a db lookup done for a song of their choice and played back to a calling party, instead of the standard ring-ring this is generally an INAP or CAMEL function, none of the existing SS7 options have it for asterisk in FOSS, afaik 100k concurrent, means 3225 E1, and even with Sangomas 8E1 cards, 4 to a box, you're looking at over 100 chassis just for the media alone asterisk isn't really geared for scaling up to this scale, you'd be much better off with the big iron boxes ... that said, if you're still REALLY INTERESTED in doing this, let us know, i'm sure we can figure something out that can start smaller and scale up it won't be cheap though ... -wasim On Thu, Nov 10, 2011 at 20:17, Michael Mueller <ss7box at gmail.com> wrote: > what's CRBT? > -- wasim h. baig | principal consultant | convergence pk | +92 30 0850 8070 | peace be upon you ... -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-ss7/attachments/20111110/2bb7315e/attachment.htm>