On Monday 24 July 2006 12:11, Shaw Terwilliger wrote: > Thank you; this is the kind of information I was looking for. The wiki > and other documents told me exactly what the configuration options did, > but I didn't know what kind of timing configuration was right for > multiple cards.
Essentially the timing is ONLY for the hardware on the card. The Digium cards use a quad framer chip (maybe a dual for the TE210 but I don't think so) and it's a hardware limitation of the framer that all spans must share the same clock source. Sangoma's cards use individual framers and don't have this limitation. (essentially I think it was a cost/space tradeoff.) Once the data is on the PCI bus, the clock source is irrelevant. They're all close enough that it doesn't matter anymore. Those framers want exact lock-step timing though, which is why your clocking settings are so very important, and why with telephony in general it is crucial to think about your clocking before throwing hardware at a solution. -A. _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
