God save this mailling list :)
Which is the best settings for the best quality of Audio ?
I'use isdn4Linux driver and SIP client
but bad quality PSTN - Asterisk and SIP - PSTN
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Asterisk-Users mailing list
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isdn4linux is generally a good idea for initial testing and similarly a
bad idea for production.
get an hfc-pci card and use bristuff from junghanns.net if you need a
single BRI, og get some isdn hardware from the same site if you need
more BRIs. Purchase PRI stuff from digium if you need that.
