On Tue, 31 Jan 2006, Aldo Bergamini wrote: > [EMAIL PROTECTED] is believed to have said: > > > > >The active cards do the ISDN protocol stuff on board, so the host CPU/driver > >does not need to do that -> better performance, less interrupts. > >The AVM cards do not have such DSPs on board, so no echo-cancel. > >But the Eicon DIVA Server cards do. They do analog Fax/Modem, echo-cancel, > >DTMF-detection, voice codec, line interconnect/mixing even to other cards, > >... with the on boards DSP. chan_capi-cm is supporting most of the features > >and will do more soon. > > > >Armin > > > While we are at the subject another couple of simple related question. > > Are HFC-S cards active? I got one for a very low price, so that I > imagine it will be NOT the case...
No, these cards are passive. The protocol handling must be done by the hosts CPU / driver. > What cards do support operation of an ISDN phone set? (I imagine there > will be something similar to the FXS-FXO stuff of the analog world in > the ISDN land). For that you need cards operated in NT-mode. The driver / protocol must support this, but the card too. HFC-S cards do as far as I know (I don't know if all do). When talking about active cards, I only know of Eicon cards supporting this. Armin _______________________________________________ --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