On Sat, Oct 07, 2006 at 01:52:00PM +0800, Andy Spring wrote: > What is DIDs, is it DIGITAL IMAGE DATA? could you kindly tell me some > details about this product, i am not familar with this device but want to > know very much
Should I answer, guys? Or should I say "we don't do people's homework assignments for them; UTFW"? :-) DID = Direct Inward Dial; a name for a flavor of trunk (group) (equivalent service) which provides to the customer PBX/switch information about which of several Directory Numbers which terminate on that trunk group a given call was directed to. Older DID's, either on T-1 or specially provisioned analog trunks, used 3 or 4 DTMF tones after wink and before pickup to send this information; newer ones are usually ISDN PRI's and send it in the ISDN User Part on the D channel. It's also possible, I'm pretty sure, to receive DID information from a PSTN-attached carrier via SIP on incoming calls. Cheers, -- jra -- Jay R. Ashworth [EMAIL PROTECTED] Designer Baylink RFC 2100 Ashworth & Associates The Things I Think '87 e24 St Petersburg FL USA http://baylink.pitas.com +1 727 647 1274 "That's women for you; you divorce them, and 10 years later, they stop having sex with you." -- Jennifer Crusie; _Fast_Women_ _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-biz mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-biz