On Mon, Sep 26, 2005 at 02:23:04PM +0100, Chris Bagnall wrote: > It seems that HFC-S cards can be connected with asterisk in a few different > ways - isdn4linux, mISDN, chan_capi or zaphfc.
mISDN (kernel modules and user lib) is used by chan_misdn and chan_capi. vISDN might be another option. > I've tried isdn4linux (severe > echo, reproducable on every inbound call) and zaphfc (intermittent echo, > disappears within about 30 secs of the call starting). There are some "Audio Quality Tuning Options" for zap channels. > What's the recommended way to hook up these ISDN cards? Is switching to capi > or mISDN likely to remove the echo problem completely, or is this one of > those things one has to accept? chan_misdn, chan_capi (echosquelch) and vISDN include a very basic echo cancellation or non echo cancellation. IMHO bristuff is the best (least worse) choice. chan_modem/isdn4linux will cause additional delay and will itensify the echo problem. Do not use "reply" if you want to start a new thread. The header "In-Reply-To:" is used by thread-aware mail clients even if the subject has been changed. -- Stefan Tichy <[EMAIL PROTECTED]> _______________________________________________ --Bandwidth and Colocation sponsored by Easynews.com -- Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users