I recently setup an Asterisk server which is the first one I have
setup using an analog line card (a cheap clone). Works nicely
(ignoring the fact that a Grandstream phone refuses to register to
it, but that's another issue) but it seems to have issues recognising
DTMF tones to navigate menus - sometimes it will, sometimes it won't.
Does anyone have any idea what that might be?
I have googled, but find only reports of people having similar
problems, for various reasons. It's like a dream to me that I once
read that this can be an issue with clone FXO cards, but google
hasn't been able to find that reference for me, so perhaps it WAS a
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