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<DIV><FONT size=2>On a polycom 600 which is working perfectly otherwise, I am
unable to use DTMF with IVR or such - not even to dialout of a Sipura setup
elsewhere. Other phones (analogue connected to ATA) are accepted.</FONT></DIV>
<DIV><FONT size=2>I suspect the phone is not using rfc2833 but I don't know
how to specify that it should use it (not available on the http
configuration).</FONT></DIV>
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