I was checking on the harware page of Digium and I found that there are
many TDM cards.
Can you explain further what a FXS and FXO port represents in a call
process in general?
More especifically, if I want to connect 2 * boxes through internet,
and I want box 1 to be able to receive a call from PSTN and allow the
caller to make a call trhough VoIP by dialing in his phone the desired
number, and then the box 2 should be able to receive a call through IP
and send it out to PSTN... what's the right configuration? I just want
this for personal use so minimum options is best althought if you have
the time and can explain every posibility will be great.
Regards and thanks once more.
RODOLFO
Rich Adamson wrote:
Is there a possible configuration in case I dont have a broadband
connection in the called-end, for example, a modem connection?
No, there is no modem support built into asterisk. The problem is that
modems typcially do not support the bandwidth needed for a single
phone call. About the minimum bandwidth needed (including IP overhead)
is roughly 30,000 bits/second full duplex.
Could I cheat Asterisk by connecting the linux boxing it's running to a
LAN which is connected to the internet using a
Modem? In this way, Asterisk will see a broadband connection... this is
assuming I dont care about the problem with
the bandwith of course.
Sure you could. Asterisk doesn't care as long as the remote destination
is accessible via IP, and the path/tunnel (regardless of what its built
on or with) has sufficient bandwidth to handle the traffic.
>From the sound of the questions, NATing and plain old IP routing are
probably some topics to review in general. Asterisk can handle NATing,
but unless you read up on exactly how to configure it for your
specific case (if needed), it's likely to be less then clear initially.
Rich
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