[Asterisk-Users] FXO ATA?

[Eric Wieling aka ManxPower]

Jon Gabrielson wrote:
> On Thursday 05 May 2005 05:28 pm, Joseph wrote:
> 
>>It has 1-FXS and one 1-Life Line (it is pass through type)
> 
> 
> I've seen the pass-through term used alot and
> I'm not quite for sure what that means.  What is the 
> difference between a passthrough type and a regular
> FXO.  What can you do with one that you can't do with
> the other?  I noticed that the wiki says  that the handytone 486's 
> lifeline FXO port is not usable via SIP, only used as a fallback 
> for power failure.  Is this considered a passthrough or are
> there 3 types, pass-through, lifeline, and full FXO. 

I just checked my dictionary and it defines "pass-thru" as meaning 
"totally useless for most people".  Pass-thru and lifeline seem to be 
different terms for the same thing.  i.e. The FXO port is connected to 
the FXS port in the event of a power outage, but other than that it is 
not useful.