> Does echo only occur on analogue PSTN lines, or can it also occur on PRI and > BRI lines?
Yes, it can occur on any type of line. > If so, for the same reasons? This is a part of our consideration > to transition to BRI. It is the result of 4-wire to 2-wire conversion "somewhere" between your end and the called end. For example, if you originate a call on a PRI/BRI, and you call a telephone number in an analog central office a hybrid conversion will occur somewhere near that terminating CO. That conversion _can_ be a source of echo. In general terms, there are significantly fewer echo issues with PRI's and BRI's then there is with any analog pstn connection. _______________________________________________ --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