On Tue, Jun 05, 2007 at 07:55:49AM +0800, Steve Underwood wrote: > In the Zaptel code, the ZT_SETREVERSAL command tries to prevent > reversals from being set while the loop is open. This test seems to fail > under some circumstances, as I have had the driver in a state where > reversals work just fine while the loop is open. I'm not clear what gets > the driver in that state. However, my actual problem is I really need to > generate reversals when the loop is open. Some of the caller ID specs > require this. Can anyone tell me why these reversals are prevented, when > it seems the hardware is quite happy to perform an on-hook reversal?
You mean ZT_SETPOLARITY? You have to do a ZT_ONHOOKTRANSFER as well if you want reverse polarity transfer on-hook (or go off hook if you want loop). If the SI chipset isn't either off hook or in the on hook transfer state polarity has no meaning. (I think it actually sleeps in some "low power" state) Mike -- Mike Jagdis Web: http://www.eris-associates.co.uk Eris Associates Limited Tel: +44 7780 608 368 Reading, England Fax: +44 118 926 6974 _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-dev mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-dev
