On 1/2/07, Bill Gibbs <[EMAIL PROTECTED]> wrote:
Echo cancel: yes (and zap show channel confirms it's enabled) I would think if echo cancel was the problem incoming faxes would fail as well?
This is only a guess. The Sangoma is detecting the fax when it receives it, and is turning off echo cancel. However, when box b sends via IAX2 or SIP to box a, the Sangoma no longer knows that it is a fax transmission and is continuing echo cancellation. The Cisco 3660 recognizes that it is a fax and turns off echo (or doesn't have echo cancellation). Question: If you turn OFF echo cancellation, does it work then?
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