[Freeswitch-users] [Out of curiosity] Why not use a voice modem for FXO?

GillesToo codecomplete at free.fr
Wed May 26 15:49:58 PDT 2010

Anthony Minessale wrote:
> A FXO card works as well as it can but traditionally requires an
> echo canceler if you want quality that will not draw complaints

Why do FXO cards generate echo issues while ATA don't? For instance, there
are a lot of people complaining about echo with the Linksys 3102.

Anthony Minessale wrote:
> The good thing about an ATA is that it's self-contained and translates
> everything into SIP for you when you don't have room for hardware.

Actually, that's why I prefer to use a PCI card instead of an ATA: No need
for a transformer and a cable to connect the ATA to the Freeswitch server,
and only one cable left to connect the PCI card to the wall plug. With
non-techie customers, it seems like a safer solution.
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