Warren wrote:
I was just told that for my forthcoming system I will be getting a data
T-1 instead of a voice T-1. Given that all of the handsets will be voip
phones, no analog at all, do I need echo cancellation? I looked at the
voip-info wiki and it seems to me that the answer should be "no" but I
would like to confirm that.
If you never make calls to analog phones or receive calls from analog
phones, then you will never have echo.
Can you be sure that all telephones you call out there on the world PSTN
will always be digital? I didn't think so.
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